Indeed, quite apart from having American blood on their hands and
American interests furthest from their mind, Shiite militias — following
Tehran’s favorite playbook — have also taken to conspiratorially
blaming the United States for inventing and militarily supporting the
Islamic State, while decrying any American anti-IS involvement in Iraq.
Take, for instance, the Badr Corps, headed by Hadi al-Amiri, the
commander of Hashd al-Shaabi, and a man infamous
for “using a power drill to pierce the skulls of his adversaries,” or
so the State Department found in a 2009 cable to Washington, which also
alleged that al-Amiri “may have personally ordered attacks on up to
2,000 Sunnis.” (Despite this grim record, al-Amiri was invited to the
Obama White House in 2011 when he was Iraq’s transportation minister.)
-- Michael Weiss and Michael Pregent, "The
U.S. Is Providing Air Cover for Ethnic Cleansing in Iraq: Iran's
Shi'ite militias aren't a whole lot better than the Islamic State" (Foreign Policy).