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U.S. Navy

The U.S. Navy is dropping live bombs in a national forest in Florida this week.

The Orlando Sentinel reports the bombs began falling in the Ocala National Forest Monday. The bombing by Jacksonville's Naval Air Station jets at the Pinecastle Range Complex will continue through Thursday.

Human error is likely to be among the causes of two separate collisions involving Navy destroyers. The accidents killed 17 sailors.

28 people have been charged so far in the so-called "Fat Leonard" bribery scandal. While the Navy has beefed up its ethics training, it also faces longstanding cultural challenges.

"I don't know why he did what he did and I'll never be able to ask him why," Cathleen Alexis, mother of the man who authorities say killed 12 people Monday at the Washington Navy Yard, said in a statement she read to the media at midday Wednesday.

CNN has audio of her comments, in which she also says that "Aaron is now in a place where he can no longer do harm to anyone, and for that I am glad."

(We're constantly updating the top of this post and adding to it below as well.)

The nation's capital went on high alert Monday after a shooting attack at the city's U.S. Navy Yard left at least 12 victims and one gunman dead and injured 8 others.