Former US Secretary of Homeland Security, Michael Chertoff
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Yemen's cababilities 'not up to the job' says Chertoff

Governments worldwide are rushing to assess the security implications after confirmation that devices found on cargo planes were "viable" bombs.

It is now known the warning came from a Saudi man, Jabr al Faifi, who had been with Al Qaeda, and turned himself in to Saudi authorities.

Michael Chertoff, the former US Secretary of Homeland Security under President Bush, told the BBC that help from the west is vital to the Yemeni authorities, whose anti-terror cababilities "may not be up to the job".

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