GRAPHIC CONTENT Islamic State video purports to show beheading of British hostage David Haines

Islamic State releases video showing beheading of 21 Egyptian Christians in Libya

Islamic State releases video showing beheading of Egyptian Christians, Egypt vows vengeance

Islamic State seeks prisoner swap after claiming to have beheaded Japanese hostage

Obama Reacts to Sotloff Beheading Promising to 'Degrade and Destroy' Islamic State

Egypt strikes Islamic State targets in Libya after mass beheading

Islamic State release video showing beheading of 21 Egyptian

Islamic State posts video showing beheading of second American journalist

Islamic State militants video "beheading " of US reporter

U.S. will be relentless against Islamic State after beheading: Obama

U.S. vows to fight against Islamic State after beheading

Inside Story - Islamic State ‘beheading’: A challenge to US?

Islamic State posts video showing beheading of second American journalist

U.S. vows to fight against Islamic State after beheading

U.S. will be relentless against Islamic State after beheading: Obama

Islamic State posts video showing beheading of second American journalist

Islamic State posts video showing beheading of second American journalist

U.S. vows to fight against Islamic State after beheading

Briton, Frenchman seen in Islamic State beheading video

French Muslims denounce Islamic State beheading

Boys and Coach Rescued from Cave in Thailand

Olmert's advice for Netanyahu

Olmert questions IDF live fire policy against 'fire kites'

Olmert reflects on Gaza under his premiership

Threat of Incendiary Kites from Gaza Continues

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