ABOARD USS RONALD REAGAN -- Fear of nuclear radiation contamination is running high in Japan following the March 11 earthquake and tsunami.
The Fukushima Daiichi nuclear power plant and its six reactors were seriously damaged.
The U.S. Navy took the situation seriously, repositioning USS Ronald Reagan after radiation detectors found traces of contamination on sailors and equipment.
The effort continues to scrubbing the carrier down.
After the cleaning, the ship, aircraft and crew will be checked again.