Witness sees Maui shark bite victim
Sources say Tsarnaev had no weapon in boat, officer injured at scene by "friendly fire."
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Arts foundation director blames staff discord, power struggle for her resignation
The U.S. plans to begin sea trials by the end of the month of a merchant marine ship with special equipment on board that can destroy much of Syria's chemical weapons stockpile, according to a U.S. Defense Department official who briefed reporters.