Osama bin Laden - a dead nemesis perpetuated by the US government

Osama bin Laden is dead!: "The Central Intelligence Agency has closed a unit that for a decade had the mission of hunting Osama bin Laden and his top lieutenants, intelligence officials confirmed Monday. The unit, known as Alec Station, was disbanded late last year and its analysts reassigned within the C.I.A. Counterterrorist Center, the officials said. [New York Times 07/03/06]"

So who benefits from us being told he's still alive and why???