originally thought. new technology on three of four cars that derailed likely saved lives. and the driver is under arrest on felony hit and run charge. police say he was found almost two miles from the site about an hour after that crash. and a massive house explosion in a new jersey neighborhood caught on police dash cam, happened yesterday while they worked on a gas leak across the street. the gas felt up to a mile away. 15 people were injured, including 7 gas company employees. no one was in the home. people that were injured were all around the area. up next i talk with anne heche and jason isaacs about their new series "dig." and marijuana, decriminalized in a place a lot of people assume it was legal. one guess, jamaica. in our things we thought you should know.