The Bush administration yesterday singled out Osama bin Laden, who operates, it is believed, from Afghanistan, as a prime suspect in Tuesday’s catastrophic terror attacks and vowed a comprehensive military campaign to demolish terrorist networks and topple regimes that harbor them. Late yesterday, Secretary of Defense Donald Rumsfeld recommended calling up 50,000 members of the Reserve, initially to help support the combat air patrols flying over major U.S. cities and possible military action. Congress, despite some misgivings from lawmakers over granting President Bush open-ended authority, moved to give the administration $40 billion to wage its initiative.