Since August , ISIS has beheaded American journalists James Foley and Steven Sotloff , and British aid worker David Haines , gruesomely showing their killings in videos posted online . Airstrikes focus on oil refineries , a source of revenue for ISIS . U.S. thinks it has identified militant in beheading videos . 113 soldiers are dead and 78 are missing following ISIS attack , officials say . Comment:
Airstrikes focus on oil refineries , a source of revenue for ISIS . U.S. thinks it has identified militant in beheading videos . 113 soldiers are dead and 78 are missing following ISIS attack , officials say . Comment: