Wally Santana/Associated PressEvacuees from Koriyama City, Fukushima Prefecture, were screened for radiation exposure at a testing center on Tuesday. By KEITH BRADSHER and HIROKO TABUCHI Published: March 15, 2011


TOKYO — A small crew of technicians braved radiation and fire through the day on Tuesday as they fought to prevent three nuclear reactors in northeastern Japan from melting down and to stop storage pools loaded with spent uranium fuel pods from bursting into flames.