Nuclear Bombs

My parents visited Alberta on a road trip recently. While crossing back into the USA, they were stopped at the border for half-an-hour because they wanted to be certain my mom wasn't a nuclear bomb! Yes, that's right, as soon as they drove up, all sorts of nuclear detectors went off (they don't check them going into Canada) and so they had to go through a series of tests to verify there was nothing in the car or on my dad--and to identify why my mom was radioactive. Once they identified that it was medically radioactive iodine, they sent them on our way! At least those of us living in the U.S. should feel safe and well protected (or just completely annoyed).