Norad Blimp News Today

Pennsylvania. now officials want to know how this blimp went rogue. cnns boris sanchez has the latest. >> reporter: john and christine, we are in anthony township in pennsylvania. officials set up a perimeter around the blimp. it is a half mile around the road. this a rural area. there is not much light. investigators are hoping to collect evidence that might lead them to answers as to how the blimp got loose and how it went down. we know there is a mechanism on the blimp to help itself deflate ...