Kabul airport attack kills 60 Afghans, 13 U.S. troops

  • Smoke rises from a deadly explosion outside the airport in Kabul on Thursday. Two suicide bombers and gunmen targeted crowds massing near the Kabul airport. (WALI SABAWOON/Associated Press)
    Smoke rises from a deadly explosion outside the airport in Kabul on Thursday. Two suicide bombers and gunmen targeted crowds massing near the Kabul airport. (WALI SABAWOON/Associated Press)

    KABUL, Afghanistan — Two suicide bombers and gunmen attacked crowds of Afghans flocking to Kabul’s airport Thursday, transforming a scene of desperation into one of horror in the waning days of an air…