Amid panic about the possibility of a radioactive fallout from Japan, Geiger counters and potassium-iodide pills -- which can help prevent radiation-caused thyroid cancer -- have been flying off the shelves, sometimes at unscrupulous prices.
As Japan's nuclear crisis deepens, Wall Street may begin to focus on a small group of almost-ignored young biotechs. Known as the bio-defense group, these companies develop products that help protect the population from radiation leaks resulting from nuclear accidents or attacks.
Japanese shares are enduring a tsunami of their own as investors pull money out of a market that is becoming more and more unstable by the day. The Nikkei 225 Index plunged 10.6%. In Hong Kong the Hang Seng Index slid 2.9% and in China the Shanghai Composite Index fell 1.4%.