March 16, 2006 -- OSAMA bin Laden must be laughing in his cave. Just when we should be looking forward to spring, the city is instead being drenched in a mud bath between Larry Silverstein and the unholy trinity of Gov. Pataki, Mayor Bloomberg and the Port Authority, over issues that ought to have been worked out four years ago. If Silverstein really doesn't have the dough to build all five office towers, as his foes claim, and if he's going to default and leave us in the lurch, why did it take until now to figure that out?