Are you worried about radiation exposure due to Japan's nuclear crisis?
Credit: ASSOCIATED PRESS
Flames engulf buildings in an industrial complex in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)