Lieutenant General Michael Flynn, an ex-chief of the Defence Intelligence Agency revealed that the graphic films inures extremists to carry out their hideous brutality.
According to the German newspaper Bild, the veteran, who is a potential running mate for Donald Trump in the US election later this year, wrote:
We looked a ruthless enemy in the eye – women and children, girls and boys, raped and exploited, the beheadings stored on a laptop next to pornography.
‘At one point we actually had determined that the material on the laptops was up to 80 per cent pornography. These sick, psychopathic enemies were not only unimaginably hideous, but also treacherous and torn. We had to work faster to outwit them if we wanted to beat them.’