On December 26th, Greg Miller and Julie Tate of the Washington Post published an article about something called the "Global Response Staff" (GRS).
From their post:
The increasingly conspicuous role of the GRS is part of a broader expansion of the CIA's paramilitary capabilities over the past 10 years. Beyond hiring former U.S. military commandos, the agency has collaborated with U.S. Special Operations teams on missions including the raid that killed Osama bin Laden and has killed thousands of Islamist militants and civilians with its fleet of armed drones.This paramilitary unit, comprised of "scorpions" - the most lethal of American military special operators - is responsible for protecting covert agents and classified drone sites in countries like Yemen, Lebanon, Pakistan and Libya (surely among other unnamed places).