I think that if we do not topple at least one terrorist-supporting government, we will lose credibility.
They'll loose crediblity with me. Any nation that let 5000+ of its people die without action deserves to be thrown out.
The Afghanistan plan is to arm and direct the Northern Alliance Resistence Fighters. Let them take care of the Taliban, after they topple that evil government, they can arrest OBL and deliver his head to the US.
Too many logistical problems for an all out invasion into Afghanistan. Good thinking, cool heads will prevail in this struggle.