(Hot Air): The initial goal of invading Afghanistan in the immediate weeks after 9/11 could not have been more clear: Get Osama bin Laden and oust the Taliban regime that gave his fanatical pack of beards safe haven to plan and practice the deadly attacks.It was the first and so far only time NATO allies invoked the Article 5 mutual defense pact. That familiar mission creep, however, seeped in and with the best of naive intentions, the foreigners stuck around to attempt nation-building to protect the power vacuum they created.