In Japan Reactor Failings, Danger Signs for the U.S. (by NYT)

TOKYO — Emergency vents that American officials have said would prevent devastating hydrogen explosions at nuclear plants in the United States were put to the test in Japan — and failed to work, according to experts and officials with the company that operates the crippled Fukushima Daiichi plant.

The failure of the vents calls into question the safety of similar nuclear power plants in the United States and Japan.

http://www.nytimes.com/2011/05/18/world/asia/18japan.html?hp