Air operations aboard the USS Ronald Reagan were temporarily halted today so more than 300 crew members could clean the ship of potential contamination from a radioactive plume off the coast of Japan on March 13. The mast-to-deck scrubdown was conducted mainly using high-pressure sprayers, brooms and seawater.
The aircraft carrier was 100 miles from the Fukushima nuclear power plant when it encountered the low-level radiation plume emitted by the plant. The radiation levels were determined to be low enough to continue humanitarian operations aboard the ship, including serving as a floating refueling station for the Japan Self-Defense Force in Operation Tomodachi (Operation Friendship).
In case you were wondering how they got all those suds cleaned up, the flight deck has an awesome sprinkler system.