On the third day of Gettysburg, Robert E. Lee launched a magnificent attack. For pure pageantry it was unsurpassed, and it also marked the centerpiece of the war, both time-wise and in terms of how the conflict had turned a corner-from persistent Confederate hopes to impending Rebel despair. But Pickett's Charge was crushed by the Union defenders that day, having never had a chance in the first place. The Confederacy's real "high tide" at Gettysburg...