Front Page: Most Popular Stories today from CBS News

Here is the Top News today from CBS News.

High lead levels could impact Flint for years
As the city starts replacing lead water pipes, parents are worried about the long-term effects on their children

Maryland fraternity party could lead to $275K in fines
Police say alcohol content of the air inside house was higher than legal limit for driving drunk; more than 100 cited for underage drinking

Pat Conroy, author of “The Prince of Tides,” dies at 70
Acclaimed writer of “The Great Santini” and “The Lords of Discipline” announced in February that he was battling pancreatic cancer

How Donald Trump could affect the GOP’s efforts to hold the Senate
Will he help or hurt Republican incumbents in November?

Cattle rancher’s wife goes vegan: “Every marriage has its issues”
Texas cattleman faced with dilemma after his wife asks him to stop selling cattle for slaughter; Steve Hartman reports what happened

Troubling new trend in auto loans
CBS News financial analyst Mellody Hobson reports on “stretch loans” which are putting a strain on owners’ finances

SpaceX finally boosts satellite into orbit
After four delays because of technical issues and high winds, SpaceX successfully boosts a new communications satellite into orbit

Photos of the week
The most compelling images from the week’s news, February 26-March 4, 2016

​Prosecutor: iPhone could ID unknown San Bernardino attacker
District attorney says unlocking San Bernardino killer’s iPhone could settle question of whether third person was involved in deadly attack

In Michigan, Clinton lays out plan to boost American jobs
Ahead of the primary on Tuesday, the Democratic candidates vie for worker support

Law professor: O.J. Simpson is “the case that never ends”
Knife purportedly found at O.J. Simpson’s former property is intriguing development, but not legally significant, law professor says

Ben Carson suspends his 2016 presidential campaign
The retired neurosurgeon said he looked at the delegate count, “did the math” and “simply realized it wasn’t going to happen”

Marcia Clark on knife allegedly found on O.J. Simpson’s estate
She says she’s glad the LAPD is taking it seriously

Prison for mom accused of having sex as toddler drowned
Lonna Lauramore Barton’s ex-boyfriend said the child drowned after being left alone in a bathtub while he and Barton had sex

Guilty pleas in “road rage” murder of Las Vegas mom
Tammy Meyers’ shooting death was initially characterized as road rage, but police later said she knew her killer

Student charged after sharing nude photos of teacher
16-year-old faces computer crime and voyeurism charges after allegedly posting online nude photos taken from teacher’s cell phone

​Police: Dad left bullets with names at youth football field
Pennsylvania league cancelled rest of season after shotgun shells with names of referees and officials found and threatening letters

Trudeau to U.S.: Pay more attention to the world
What do Canadians not like about the U.S? Lara Logan asks Canadian Prime Minister Justin Trudeau and gets a surprisingly candid response

Trump shifts gears on torture: “I will be bound by laws”
The Republican presidential candidate, who has previously promised to perform “a lot worse” than waterboarding on terrorists, seemed to reverse that position Friday

Deaths on “Downton Abbey”
For a series that started off with the sinking of the Titanic, it’s no surprise “Downton Abbey” has seen plenty of tragic deaths

​Tony Dyson, who built original R2-D2 for “Star Wars,” dies
Robot maker also contributed to effects of such films as “Moonraker” and “Dragonslayer”

Rupert Murdoch and Jerry Hall marry in London
They were photographed emerging with smiles Friday from Spencer House

Promising approach helps reduce peanut allergy risk
New evidence that introducing infants to peanut foods at an early age may be beneficial

S.C. toddler calls 911 for fashion emergency
“The door opened up and she comes running out to the front with half a pant leg on and she’s just like, ‘Hey!'”

$4B World Trade Center transit hub
New York City’s soaring ‘bird-like’ structure designed by Santiago Calatrava took 12 years to build and $4 billion — the most expensive train center ever

Student arrested after Trump threat makes deal with feds
California student arrested after posting to Facebook that he would be willing to serve life sentence for killing GOP front-runner

Man convicted of lewd acts on child he later married
Prosecutors say Isidro Garcia threatened and beat his victim for years, until she mustered the courage to report him to authorities

Boeing’s self-cleaning lavatory zaps germs with UV light
It could be the cleanest bathroom in the sky, and you’d hardly have to touch a thing

How to move to Canada: 10 great housing deals
Thinking of fleeing the U.S. in the wake of Super Tuesday results? Check out these homes for sale in the Great White North

Iconic tennis journalist Bud Collins dead at 86
Known for his colorful pants and exuberant personality, Collins was a fixture in tennis journalism for decades

Alabama high court falls in line with U.S. Supreme Court on gay marriage
An attorney for the Alabama Policy Institute, which sought to prevent more gay marriages in Alabama, wrote that the order “appears to give us no option”

Officer in Baltimore school beating probe was a fired deputy
The school officer was one of two sheriff’s deputies fired for reportedly using an electric stun gun on a man they mistook for a bank robber

Ted Cruz: A brokered convention “ain’t gonna happen”
The Texas senator also appeared open to forming a possible unity ticket with rival Marco Rubioo

A behind-the-scenes look at covering the National People’s Congress of China
The annual National People’s Congress of China convenes in Beijing, with journalists from around the world invited to attend

Who won the Republican debate Thursday night?
John Dickerson: I asked Twitter, if they could show their kids the answers of only one candidate, which one would it be?

Sex linked to better brain power in older age
Study finds older adults with more active sex lives may see benefits in memory and thinking skills

Scientists use math to hunt for identity of Banksy
Elusive street artist Banksy may have been unmasked – by mathematics

Cops: Siblings robbed Girl Scout selling cookies
The Florida brother and sister duo allegedly stole a box of money from the table where a 12-year-old was selling the popular cookies outside a Wal-Mart

Mystery bacteria linked to 18 deaths
Medical detectives seek source of bloodstream infection that’s sickened dozens of people

“My Life as a Slave” assignment nixed as insensitive
The assignment asked students to discuss being kidnapped from West Africa, riding on a slave ship and being sold at auction

Hubble Space Telescope finds most distant galaxy yet
Galaxy formed relatively soon after the Big Bang, letting astronomers take “a major step back in time”

Donald Trump to skip conservative summit
Instead of attending the Conservative Political Action Conference this weekend, Trump will be holding a rally in Kansas on the day of the state’s caucuses

Mom of triplets killed while trying to break up family fight
Colorado woman raced to her mother’s home after receiving frantic phone call

The O.J. Simpson trial: Where are they now?
On October 3, 1995 “The Trial of the Century” ended with the acquittal of former football star O.J. Simpson for double-muder – Where are all the key figures now?

Football players accused of sexually assaulting teammate on “No Gay Thursday”
Suburban Philadelphia district attorney says high school students attacked one of their own in locker room

Knife allegedly found on O.J. Simpson’s property being tested
Los Angeles police confirmed Friday that they are investigating a buck knife allegedly found years ago on the NFL star’s property

3 things a President Trump could do to the economy
Immigrant ban, trade sanctions and budget busters prompt belated moves by financial leaders to block businessman’s rise

This Morning from CBS News, March 4, 2016
Trump changes his mind on immigrant policy and calls his rivals names, and we go into part of Syria where calm is returning, and another where it’s not

What drives Uber CEO’s ingenuity?
Ride-sharing service is valued at close to $60 billion and co-founder Travis Kalanick is focused on the road ahead

How well is the Syrian cease-fire really working?
Monitoring group cites impressive drop in overall violence, and in spite of the challenges, limited truce could prove a major turning point

Boston bombing survivor making good on a marathon promise
Adrianne Haslet-Davis, who lost part of her leg in the 2013 attack, plans to complete the race she’d never dreamed of running

Job growth jumped in February but wages hit
Employers added a robust 242,000 jobs last month, a sign the U.S. economy is shrugging off downturn overseas

Gunmen storm retirement home, kill 4 nuns
More than 12 killed in latest attack targeting civilians in Yemen’s south, where U.S.-backed gov’t is battling extremists

Babysitter allegedly caught on camera trying to smother baby
20-year-old California woman allegedly tried to smother 13-month-old boy, who apparently wouldn’t stop crying, court documents show

Donald Trump: John McCain “has to be very careful”
GOP front-runner issues warning after Arizona senator sided with Mitt Romney in criticizing Trump

Kasich: If I win Ohio, GOP gets a “brokered convention”
Ohio governor believes that after Thursday’s debate, American voters will “focus on who really had the substance up there”

Justice, but too late for boy who became symbol of Syria’s suffering
2 men sentenced to prison over smuggling that led to Aylan Kurdi winding up dead on a Turkish beach

Police: Mom blocked from saving 3 kids in house fire
Washington mother the sole survivor of overnight blaze that killed children, police say

Bobbi Kristina Brown 1993-2015
The only daughter of Bobby Brown and the late Whitney Houston

Man posing as honor high school student speaks out after arrest
People who helped man posing as earnest Pennsylvania teenager also step forward to reveal new details

Bobbi Kristina Brown’s cause of death revealed
Bobby Brown says it’s “unsettling” and “mind blowing” that autopsy results are being made public in the death of his daughter

Eye Opener: Insults and attacks fly at GOP debate
One of the most tumultuous days in Republican Party history ended with a bitter presidential debate Thursday night

Cops have message for whoever left drugs in hotel
“We feel horrible for your loss,” police in Macedonia, Ohio wrote in a tongue-in-check Facebook post

Hoverboard drive-by shooting probed by Dallas cops
Victim offered hoverboarder a ride, but encounter had dangerous ending, authorities say

Can its new Sentra put some pep in Nissan?
As the Japanese automaker struggles to drive growth, the company brings out an updated version of its popular compact

Get tax breaks just for getting older
Once you cross the 50-year-old mark, advantageous tax rules start coming your way, and just keep coming

Deflating “Deflategate” hearing for Tom Brady
Prospect of 4-game suspension may loom larger after federal appeals court hearing

Social media: Marriott is guilty in Erin Andrews case
A defense lawyer’s suggestion that the sports reporter benefited from the nude video going viral sparks a backlash

China returns fire at U.S. as war-of-words escalates
Bejing and Washington accuse each other of “militarization” in the South China Sea, but China’s new military budget may belie the belicose rhetoric

New cameras capture huge inmate brawl at California jail
Day after sheriff uses her own money to install new surveillance cameras, massive fight puts Santa Clara County Main Jail on lockdown

​Spanish princess claims ignorance at tax fraud trial
Princess Cristina testifies that her husband paid all the bills and she “didn’t get involved in that”

New twist in case of Facebook exec jailed in Brazil
Executive was detained in dispute with police over access to WhatsApp data

Device enables monkeys tp control wheelchair with their minds
Research is giving monkeys amazing capabilities, and could help humans in the future

Costco follows Walmart in hiking minimum wage
In a sign of growing competition for workers, warehouse club to pay entry-level people an extra $1.50 an hour

5 women file suit to end New York “tampon tax”
Tampons and pads “a necessity for women, not a luxury,” lawyer says: “There is no way these products would be taxed if men had to use them”

In GOP debate, Trump is unpredictable and proud of it
Front-runner defended his “flexible” approach to policy positions, while making some wild statements

Donald Trump is “changing” on immigration issue
Trump spoke to the New York Times editorial board in January, and immigration reportedly came up

Trump dominates social media conversation
GOP front-runner and real estate mogul accounted for 74 percent of Google searches during the debate

Fact-check: How did the Better Business Bureau rate Trump University?
Trump said during the debate that the BBB had given his school an “A” rating

Honduran environmental activist killed by gunmen
Berta Caceres shot dead by multiple gunmen who broke into her home, authorities say; had previously complained of death threats

Donald Trump defends the size of his hands, and more
“Look at those hands, are they small hands?” Trump asked rival Marco Rubio

Aleppo residents “weary, desperate” after five years of war
CBS News’ Elizabeth Palmer reports from cultural and industrial center of two million people still partly in the hands of rebels

Protesters descend on GOP Debate in Detroit
With signs saying “Dump Trump” and “Workers for $15 Wage,” a sea of protesters lined the streets outside Detroit’s Fox Theatre

Police: N.C. man pulled gun before being fatally shot by officer
Akiel Denkins was shot and killed during a struggle with an officer; police say he pulled a gun from his waistband

Energy drinks raise more health concerns
Latest study adds to the evidence that energy drinks can have serious health effects

Apple finds out who its friends are in battle with FBI
Tech companies, security experts and others file court briefs in the dispute over access to terrorist’s iPhone

Military beginning to recruit women for combat jobs
The Army intends to first assign female officers to jobs in the infantry and armor units, then gradually bring in female enlisted soldiers

No evidence of hack in Clinton’s email, her former tech aide tells FBI
Clinton’s former aide said there is no evidence her emails were hacked, even though hackers with links to Russia did try to gain access to the account

Are you a “super-recognizer”? Take a test
“Face blind” people can’t recognize faces. “Super-recognizers” are the opposite. Take the “Before They Were Famous” test to find out if you’re a “super-recognizer”

GOP candidates debate in Detroit
The four remaining candidates—Donald Trump, Ted Cruz, Marco Rubio and John Kasich—face off for the first time after Trump’s Super Tuesday victories

Syrians try to pick up the pieces of war-torn country
Five years after the uprising that sparked Syria’s civil war and a week into a partial truce, CBS News reports from villages liberated from ISIS

6 Things to watch for in tonight’s Republican debate
The debate comes two days after Trump expanded his delegate lead on Super Tuesday

​Gladys Knight sings “Happy Birthday” during traffic stop
Utah police officer lets driver off with a warning after legendary soul singer got out of the woman’s car to serenade him

Daily low-dose aspirin may cut risk of certain cancers
New research finds additional benefits of long-term aspirin therapy

Second daycare teacher convicted of cruelty in “baby fight club”
Two other Virginia teachers testified the woman systemically mistreated the toddlers, including encouraging twin sisters to fight

Brazen gun heists on the rise
ATF agents say they are seeing more bold burglaries; as stores beef up security measures, criminals up their game

Report: ​Bird poop caused N.Y. nuclear reactor outage
The excrement apparently caused an electric arc between wires on a feeder line; it was not immediately clear what kind of bird it came from

​Report: North Korea readying nuclear weapons
North Korean leader Kim Jong-un ordered nuclear weapons made ready for use at a moment’s notice, the official state news agency reported

Madonna, Guy Ritchie continue custody battle
The two still have not come to a custody agreement over their son Rocco

The first all-female “Ghostbusters” trailer is here
Melissa McCarthy and Kristen Wiig ain’t afraid of no ghosts