Japan: Fukushima and Tokyo
A car passed by a solar-powered Geiger counter on Sunday, Feb. 26, 2012, on a street in Fukushima, Japan. Radiation is still leaking from the Fukushima Dai-ichi plant, though at a slower pace, nearly a year after the March 11 earthquake and tsunami. It's not immediately fatal but could show up as cancer or other illnesses years later. What's clear is Fukushima will serve as a test case that the world is watching for long-term exposure to low-dose radiation.