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Jacqui Smith: When do we tell the PM about a bomb scare?

8 November 2010 Last updated at 12:06 GMT

Former Home Secretary Jacqui Smith explains how to deal with a bomb scare and when to tell the prime minister.

She debates the political week with Michael Portillo in the aftermath of the printer cartridge scare that has been traced back to Yemen, but there are questions over why David Cameron was not told for several hours.

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