We know that we've already dismissively noted in passing the news of onetime pop star Britney Spears' triumphant return to the VMAs, but this AP video reminds us why the announcement was a moment of incredible cultural import. Somehow, buffeted by constant reports of ill-advised infant tooth-whitening, topless hot-tub hostage-taking, and poop-marred photo shoots, we'd completely forgotten about her impressive VMA performances of the past: the flesh-colored underthings, the albino reptiles,...