PORTLAND, Ore. - Coast Guard Petty Officer 1st Class John Herman (left) and Petty Officer 1st Class Luke Potter, marine science technicians assigned to the Davy Crockett Unified Response in Portland, Ore., maintain safety watch over the 431-foot flat-deck barge Davy Crockett on the Columbia River, Ore. Wash. Border, Friday, Feb. 10, 2011. The Davy Crockett began leaking oil into the Columbia River during a civilian salvage operation on Jan. 27, 2011. U.S. Coast Guard photo by Petty Officer 2nd Class Eric J. Chandler.
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