Easy tinman. The reason we are in Afghanistan is to primarily prevent them from harboring terrorists. The goal is to deny sanctuary and if we pulled out now, they could easily move right back in. This problem will never go away because as long as there are countries with unsecure borders and lax government, there will be a place for terrorists to plot, train and organize. They are like cockroaches. The second you turn your back, they will move back in. Strangely enough, coalition forces use an old terrorist training camp outside Khandahar, AFG to do live fire training for upcoming operations.