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Sydney siege gunman: Video shows commandos in cafe

Australian Prime Minister Tony Abbott has announced a review into the background and security checks on the man behind the Sydney cafe siege.

Mr Abbott said questions must be asked about how Man Haron Monis was not on a watch list despite a history of violence and mental instability.

Monis died along with two hostages on Tuesday when police raided the cafe he had taken over in the centre of Sydney.

Phil Mercer reports.

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