The US and France have recently claimed that Daesh, also known as ISIL, is developing chemical weapons but these allegations should be cautiously considered since Washington has already used similar claims as a pretext for the 2003 invasion of Iraq, investigative journalist Janet Phelan warned. http://sputniknews.com/middleeast/20151213/1031673174/us-isis-chemical-biological-weapons-invasion-iraq.html