Federal investigators also identified a violation of Coast Guard regulations that could trigger criminal charges in the California dive boat disaster that killed 34 people.
More than half the 34 people killed as they slept in bunks below deck early Monday have been positively identified through DNA, and their family members around the world are being notified.
While the old saw about the captain going down with his ship is more an antiquated notion, there are laws to punish a ship's master who shirks his duty to safely evacuate passengers.
Five crew members who jumped off the dive boat Conception were rescued, and Lt. Cmdr. Matthew Kroll told The Associated Press the Coast Guard was searching for others who may have been able to escape the same way.
Just 5 percent of the uranium the U.S. needs for military and electricity generation comes from domestic production. Russia and other countries supply the rest.