Of course, I think Obama would clean the floor with Herman Cain, whose depth of policy knowledge is shallow to say the least.

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The Thresher sank toward the ocean floor after losing power, until it imploded below crush depth into thousands of pieces.

WSJ: Work stalled on Thresher memorial park in Maine

Locating a ship resting on the floor of the ocean for many decades is somewhat different than finding a submersible to get to that depth and plugging many leaks in a riser pipe and in a blowout preventer.

WHITEHOUSE: Press Briefing