Admiral Mike Mullen news conference
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US acts over Benghazi embassy attack failings

A senior US security official has quit and three others are suspended after a damning report into a deadly attack on a US mission in Benghazi.

The state department said diplomatic security chief Eric Boswell resigned and three other unnamed officials had been put on administrative leave.

An internal report blamed "grossly inadequate" security for the deaths of US envoy to Libya Christopher Stevens and three other officials, who were killed in the attack on 11 September.

James Kelly reports.

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