Five months after MSNBC canned him, Keith Olbermann returned to television tonight as Countdown made its debut on Current TV. It's pretty much the same exact show: The new network is basically the only difference between this incarnation of Countdown and the last one. But just in case you have any doubts, Olbermann's typically over-the-top "special comment" this evening—in which he claims that he's the "last line of defense" when it comes to protecting America's independence from being taken away by evil corporations—is above.