Long before 9/11, a far deadlier, little-known attack fromthe ocean depths struck our shores, lasting three-and-a-halfyears and claiming 5,000 lives. Now, famed undersea explorerBob Ballard, discoverer of the Titanic, investigates thewreck of one of the attack craft, a German submarine that liesat the bottom of the gulf just a few miles off New Orleans.U-166 was part of Operation Drumbeat, a highly successfulU-boat operation that caught East Coast cities and shippingalmost completely unprepared. Ballard probes the wreck andunravels a dramatic mystery in the official story of the sub'ssinking.
