by him several times before ending uhm on his train car. finally he got a clue when the agent questioned the man. >> he says "sir do you have an explanation why i'm getting a high isotope reading on your bag." >> reporter: jones realized he was the one they were looking for. that's when he raised his hand to confess. >> i had a nuclear stress test. >> reporter: after showing his id. and proof of the nuclear test which can leave patients emitting radiation for some time, jones and the other passengers were allowed to go on your way. what feeling do you walk away with? >> one of great security knowing there are people on the lookout for this type of thing. >> our thanks to dave sevigny of affiliate wbm for that. we'll be right back. a bad dream, be ready. morn for the times you need to double-check the temperature on the thermometer, be ready. for high fever, nothing works faster or lasts longer.