Engineers have studied the July 7th bombings to come up with what they say is a life-saving design for a train carriage. But will Transport for London consider paying for them?Simon Harris reports.
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"I think there are a number of things I didn't do correctly in this case", said Ademola Dada.
Mr Johnson vowed to lie down in front of the bulldozers when he was elected MP for the west London constituency of Uxbridge & South Ruislip
The course is designed to help spot the signs of suspicious behaviour.