Bob Longwell News Today

day as you say. >> there is no way to avoid it. it is very small amounts. >> reporter: this radiation biologist says exposure comes from a variety of sources. >> flying in an airplane. increased radiation because of the altitude because our atmosphere shields us from radiation. so if you get up high enough you get a higher dose. >> reporter: according to the american nuclear society flying exposes you to radiation. watching an old-fashioned t.v., one with a tube exposes you to 10. gett...