There you are, you’re George W. Bush, you’re trailing badly in the polls, you’ve got this nasty little problem with domestic spying making headline news all over the place, your war in Iraq is continuing to go sour, and all your best buddies are getting indicted for corruption and bribery. So what do you do? You call out the heavy artillery, that’s what! Last week, after a year’s absence, George W. Bush’s biggest supporter, Osama bin Laden made a rare appearance, via an audiotape mailed to Aljazeera TV. In the tape, bin Laden alternately threatened to bring the war back…