The young Afghan couple raced to the airport in Kabul, clutching their baby girl close amid the chaotic withdrawal of American troops last year.The baby had been rescued two years earlier from the rubble of a U.S. military raid that killed her parents and five siblings. After months in a U.S. military hospital, she had gone to live with her cousin and his wife, this newlywed couple. Now, the family was bound for the United States for further medical treatment, with the aid of U.S. Marine Corps attorney Joshua Mast.When the exhausted Afghans arrived at the airport in Washington, D.C., in late August 2021, Mast pulled them out of the international arrivals line and led them to an inspecting officer, according to a lawsuit they filed last month. They were surprised when Mast presented an Afghan passport for the child, the couple said. But it was the last name printed on the document that stopped them cold: Mast.They didn’t know it, but they would soon lose their baby.