James Foley, May 2011
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Foley beheading video shocks the world, Obama says

US President Barack Obama has said the beheading of US journalist James Foley is "an act of violence that shocks the conscience of the entire world".

Mr Obama compared Islamic State (IS), the group which made a video of Mr Foley's killing, to a "cancer" and said its ideology was "bankrupt".

IS said Mr Foley's death was revenge for US air strikes on its fighters in Iraq.

Ian Pannell reports.

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