Afghan Firefight Gunmen open fire at U.S. base. Updates on QuickCast now. news_war_ussoldier_rts.jpg l video.gif http://start.real.com/rd?url=http://smilparse.real.com/showcase/1pubs/channels/cnn/cnn.smi&adcode=none cnn.gif http://start.real.com/rd?pid=cnn_gp&url=r1_quickcast.smi&rpurl=http://www.cnn.com PLAY headline