He says U.S. contacts with the Taliban are preliminary . The Taliban says it killed German troops in a suicide car bombing . `` I would say that these contacts are very preliminary at this point , '' Defense Secretary Robert Gates said in an interview broadcast Sunday on CNN 's `` State of the Union . '' Officials : Those confirmed killed or wounded are missing . The attack comes after the Afghan president says the U.S. is in peace talks with the Taliban .
He says U.S. contacts with the Taliban are preliminary . The Taliban says it killed German troops in a suicide car bombing . Officials : Those confirmed killed or wounded are missing . The attack comes after the Afghan president says the U.S. is in peace talks with the Taliban .