Taliban told US it would give up Osama - middleman By Mark Trevelyan BERLIN, June 4 (Reuters) - U.S. and Taliban officials met secretly in Frankfurt almost a year before the September 11 attacks to discuss terms for the Afghans to hand over Osama bin Laden, according to a German television documentary. But no agreement was reached and no further negotiations took place before the suicide hijackings in 2001, which bin Laden subsequently hailed in a videotape as the work of his al Qaeda network. ZDF television quoted Kabir Mohabbat, an Afghan-American businessman, as saying he tried to broker a...