But they have all their guns out! Its not dangerous there?
No. You can check the Bagram wiki for specifics, but the only real danger is indirect fire. They used to take indirect fire every day, but it's pretty sporadic now. There was one "spectacular" attack against BAF in 2010, with a dozen suicide bombers and small arms fire, but the airmen in the towers killed them all. IIRC 9 or 10 US forces were injured, but no one was killed.
I had a couple of rockets hit 100-150m away from me one night in 2010 while I was walking along Disney Ave (the main drag on BAF.) I saw the flash, and then the boom, and then another flash, and another boom, I'm sure the delay was exagerated in my brain. But I stood there with another Army officer and said, "What the fuck is that?" And he was like, "I think it's rockets or mortars or something." At that point all the BAF residents started running around like ants in a mound that got kicked. Some Air Force Security Forces guys told us to get in the hospital because it was "hardened." So we're crowded in there with a ton of airmen, some of whom are wearing all their armor, kevlar, etc. and I hear this airman go, "Do you think salsa night is going to start back up after this?"
After hanging out in there for about half an hour, myself, the other US Army officer and a Jordanian psychiatrist Colonel conspire to leave the hospital to go back to the visitor billets, since we figured neither building was going to stop a rocket, and frankly I'd rather die playing PSP than listen to airmen complain about the woes of BAF life. We thought we were being pretty slick avoiding the security forces patrols, ducking behind cargo containers and whatnot, and we were about 200m away from our little hut when a HMMWV comes roaring up with lights and sirens and hits us with the lights. As the security forces NCO explained as he escorted us back to the hospital, their aerial surveillance saw us on thermal sneaking around and they thought we were bad guys infiltrating the camp.