Turkish President Recep Tayyip Erdogan has threatened to shut down the major US Incirlik airbase in response to Washington's recognition of the Armenian "genocide" and possible introduction of new sanctions against the country. "If it is necessary for us to take such a step, of course we have the authority...If this is necessary, together with our delegations, we will close down Incirlik if necessary," Erdogan said on A Haber TV ...