The video of a prisoner being burned to death displays "a level of brutality shocking even by the standards" of Islamic State. That is not something that most reasonable people would question. However what is the elephant in the room, a connected issue that is rarely discussed, is how should we describe the actions of the US and UK in Iraq and around the world?
According to a 2012 joint report from the NYU and Stanford University law schools on US drone strikes in Pakistan, "the missiles fired from drones kill or injure in several ways, including through incineration".
Similarly barbaric, in 2008 the Sunday Times reported British forces were using Hellfire missiles in Afghanistan, creating "a pressure wave which sucks the air out of victims, shreds their internal organs and crushes their bodies".
As has often been said, violence begets violence. What is needed is holding to account all parties guilty of crimes against humanity. Selectivism is never acceptable.