In the trailer for "White House Down," bad people are shooting guns and blowing everything up — then they keep shooting, and large objects continue to explode. So who will save our country from this explosive attack? Oh yes, a buff and sweaty Channing Tatum. Tatum plays John Cale, a police officer who's minding his business, taking his daughter on a tour of the White House, when the attack begins. Somehow, he must save the president (Jamie Foxx) and nation from paramilitary invaders. Director Roland Emmerich has a fondness for attacking the White House dating back to the 1996 disaster film "Independence Day." Although "White House Down" is eerily reminiscent of another movie currently in theaters ("Olympus Has Fallen," anyone?), check the trailer out and judge for yourselves. "It's not only about taking over the White House; it's actually doing a coup de tat. It's like 'Seven Days In May,' which I always felt was a m