Nose Sample News Today

Welcome back to the most news in the morning. 27 minutes past the hour. recently the transportation industrys security screening procedures are under intense scrutiny by the federal government. amtrak believes it is using something effective and affordable. in our cnn security watch today, jean maserve takes a look at our detectives. >> reporter: let me introduce you to any must best friend, the next generation in explosives detection. a dogs nose sample the air many times a second. this dog sni...