Iraqi soldiers that the U.S. trained to fight ISIS are now under investigation for war crimes by Iraq. American and Iraqi officials told ABC News that "dirty brigades" have posted evidence of their alleged crimes online, including a "video of a handcuffed prisoner shot in the head by a man in camouflage," according to ABC. "Usually when forces commit such crimes they try to hide them. What we are seeing here is a brazen, proud display of these terrible crimes," said Sarah Leah Witson, the Middle East executive director at Human Rights Watch. "What we are watching carefully is whether the militias...when they recapture lost territory, whether they engage in acts of retribution and ethnic cleansing," said Chairman of the Joint Chiefs Gen. Martin Dempsey. The Pentagon said the U.S. has already cut funding to certain units.