An Amtrak train collided with a CSX freight train near Columbia, S.C., early on Feb. 4, killing 2 and injuring more than 100 in …
What we know about Amtrak's deadly South Carolina collision

An Amtrak train collided with a CSX freight train near Columbia, S.C., early on Feb. 4, killing 2 and injuring more than 100 in …