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In combat, a decorated combat veteran joins us tonight, retired four-star general and nbc news military analyst, barry mccaffree. general, good to have you with us on this very important day for america to remember. please put into pempt for our viewers just how important this mission was. and it was not a slam-dunk that it was going to be successful. >> well, thats an important point to make. we look back in history and we think things are foregone conclusions but on that day, this massive comp...