National

FBI failed to follow up on tip before Florida school shooting

Flu season shows signs of leveling off

John Kelly orders changes to the White House clearance process

Nikolas Cruz was on rifle team that got NRA grant

Father regularly sends his children postcards as simple act of love

Trump responds to indictment of 13 Russians: "no collusion!"

No indication of shooting after police swarm Wash. college

Florida student survived shooting just as her grandfather did 70 years ago

PARKLAND

Sessions orders review of FBI, DOJ procedures after school shooting

Florida Gov. Rick Scott urges FBI Director Chris Wray to resign

FBI investigates hanging of black man from tree in Mississippi

DOJ indicts Russians for meddling in 2016 election

New York City

N.C. to seek death against suspect in toddler's killing

FBI received a tip about accused school shooter but didn't follow up

Wash. college on lockdown after reports of gunfire

Dramatic 911 call about Oregon climber's death released

Red Gerard recalls his "mess of a morning" before historic Olympic win

Grieving mom invokes Trump's boy in plea before daughter's funeral

Mom of Florida shooting victim sends emotional message to Trump

Student who survived school shooting sends strong message to lawmakers

How the 6-minute deadly rampage unfolded at Florida school

Florida students grapple with loss after deadly shooting

From left

This week on "Sunday Morning" (Feb. 18)

Large sinkholes threatening homes in Florida