Camera Recording Systems News Today

>> this happened yesterday here on americas news room, the early morning rush hour nightmare outside of l.a. a commuter train colliding with a truck, injuring 54 three of them critically. thats who days after the ntsb released preliminary findings on a deadly collision earlier this month in new york between a commuter train and an s.u.v. that killed six people. laura is live in the new york city newsroom on this. what are some rail safety measures being worked on to try to prevent this? >> hi bi...