Mayorkas defends 'multi-layered, multi-agency' Afghan refugee vetting amid GOP concerns
Homeland Security Secretary Alejandro Mayorkas on Thursday defended what he described as a “multi-layered, multi-agency” vetting process for Afghanistan refugees amid Republican concerns that it could lead to terrorists entering the U.S. Mayorkas was asked at a National Press Club event about concerns that Islamic State fighters could enter the U.S. through the Afghan refugee…