"We have nothing to lose and the only thing we have to gain at this point is our safety," student Delaney Tarr says. "We know what we want. We want gun reform. We want commonsense gun laws. We want stronger mental health checks and background checks to work in conjunction.”

Student to CBS News: "A couple of weeks ago, our teachers were going to every classroom & telling them procedures for a school shooting & they were saying they were supposed to lock their doors...it's just very coincidental because we went through these procedures so recently."

CBS News has learned that EPA chief Scott Pruitt received a waiver to fly business class on Emirates Airlines in June, a flight that cost at least $7,000 and was funded by taxpayers https://t.co/7FhFpgddPw

"At the center of America's resurgence are the massive tax cuts that we just passed before Christmas," @POTUS says, saying that he promised a "Christmas present" for Americans and delivered with tax cuts https://t.co/bPu5Qu6vBa

“We just want to live in peace. We just want to be able to visit our families on both sides of this border. Learn how a border wall could divide this Native American reservation -- and its people: https://t.co/FLmZpd7i7Q

NEW: Sens. Tom Cotton and David Perdue issue joint statement on President Trump's reported "sh*thole" comment, saying "we do not recall the President saying these comments specifically." https://t.co/2sBsSAqrLY

"If the president thinks he is winning over supporters and friends with those divisive remarks, he is wrong," Sen. Durbin says https://t.co/mfRIwzp86m

@CBSNews A federal judge in California has blocked the Trump administration from ending DACA –– the program that protects immigrants brought into the country illegally as children from being deported. @nancycordes reporting.

Christmas storm buries Erie, Pennsylvania, with record snowfall https://t.co/FfAX8HTCeV

Airship says it is an armed parolee con pistola. K9 in Van Nuys dealing with whatever gem they have to offer tonight… requesting a doggie.

Palestinians will not meet with VP Pence after Jerusalem recognition, says senior Palestinian official https://t.co/C1tvtmORpm

CCPD: Parking Enforcement requesting a PD unit for a fight on the Paddleball Courts at Culver Blvd/Elenda.

.@PressSec says that Pres. Trump's "I should have left them in jail" tweet on UCLA players was "a rhetorical response to a criticism by [LaVar Ball]" https://t.co/RaXxJ56RvO

NY Gov. Andrew Cuomo: "At this point, there's no evidence to suggest a wider plot, or a wider scheme" https://t.co/fad8qNTMeb

CCFD: Smoke Investigation, 5900 block of Stoneview Dr. Smell of smoke in the area, no fire/flames seen. E42 enroute to investigate

Mississippi lawyer who took on tobacco industry has found his next Goliath: the big drug manufacturers https://t.co/upGswspFUQ

Chris Rosati, dear friend of @OnTheRoadCBS, died today. We'll honor him Fri. Here's the first time we met him in '14 https://t.co/xBKvJixVEL

California woman found guilty in husband's love triangle killing https://t.co/XaFHDmw2rn

After news of Vegas massacre spread, a friend asked Denise Burditus: "Are you two ok--"; she never replied https://t.co/7zzfzTuNE1

A new report accuses CarMax of selling recalled vehicles that have not been fixed https://t.co/B39WPODLNE