Islamic State opens new anti-U.S. front with beheading video
File photo of U.S. journalist James Foley (R) with fellow reporter Clare Gillis (not pictured), after being released by the Libyan government, at Rixos hotel in Tripoli, May 18, 2011.
Wreckage of a car belonging to Islamic State militants after it was targeted by an American air strike near Mosul Dam in Mosul in northern Iraq August 19, 2014.
BY MICHAEL GEORGY AND MARIAM KAROUNY-BAGHDAD/BEIRUT
(Reuters) - Islamic State's beheading of a U.S. journalist and its threat to "destroy the American cross" suggests it has gained enough confidence seizing large areas of Iraq and Syria to take aim at American targets despite the risks.