Islamic State (ISIS) militants beheaded another US hostage, Peter Kasssig. The extremists issued a video on Sunday of the beheading and warned of similar actions on the streets of the US. President Barack Obama confirmed Kassig's beheading. He is the fifth Weestern hostage to be decapitated by ISIS, who have also beheaded 14 Syrian army officials who the group said were loyal to the country's president. teleSUR