Japan nuclear plants

Radiation Risk to U.S. Very Low, Top Expert Explains

As the crisis at Japan's Fukushima Daiichi nuclear plant continues, some worry that radiation from the damaged reactors will reach U.S. shores. Dr. Edward Maher, president of the Health Physics Society, and an environmental science expert at Harvard, explains why we should breathe easy.

Are Investors Ignoring All the Good News?

With all the tragedy dominating the news these days, it's easy to be pessimistic. But the cold, hard facts about the economy actually paint a more optimistic picture.

Japan's Nikkei Pares Losses as Factories Reopen

Japan's markets got a slight reprieve today as the yen slipped a bit after hitting a record high yesterday. While the lower value helped exporters recover from severe losses earlier in the trading session, the country has a long way to go before confidence in its economy's resilience is restored.

Japan's Nuclear Crisis: U.S. Sales of Radiation Pills Boom

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 Nuclear Fears Mount, Some Zero In on Bio-Defense Sector

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.

Nuclear Catastrophe Sinks Japanese Shares

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%.