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When did SOG start making knives in China?
by Answerbag Staff on May 14th, 2011
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What is the distance from Japan to China?
by Answerbag Staff on May 9th, 2011
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Does a one-day rail pass in Tokyo take you to the airport?
by Answerbag Staff on May 1st, 2011
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Is anyone in Japan still alive?
by Weylon on January 28th, 2012
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Are Japanese women's breasts naturally big or small? Are they round or perky?
by tendoboy1984 on February 10th, 2012
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You're reading Why are Hiroshima and Nagasaki habitable cities. Shouldn't they be polluted for centuries?
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Very thorough answer +++. The only thing I would add is that it also depends on the half-life (or how long it exists in it's initial state) of the radioactive materials used. I belive for most known radioactive substances it's hundreds if not thousands of years, so once it reaches it's half-life it will be altered to a non-radioactive susbstance.
by Cyndi Ninja on November 19th, 2007