‘No doubt in our minds' that Assad behind Syria attack, Rex Tillerson says

Rex Tillerson, the US secretary of state, said on Thursday that the United States was considering an ‘appropriate response’ to a chemical weapons attack in Syria that left scores of people dead this week and prompted international condemnation. Tillerson said there was ‘no doubt’ that the Assad regime was behind the attack, adding that steps were ‘under way’ to help organize an international coalition against the Syrian president