In 1999, Tony Blair was filmed taking a trip on the Tube. Laughing, he apologised to a fellow passenger about the disruption, as he was snapped by photographers.
In the good old-fashioned style of Tube passengers throughout the ages, she ignored him.
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The memorial will focus on remembering the 71 victims of the tower block fire.
A woman died as she crossed the road when she was struck by four separate motorists who police believe did not stop.
Patrols including local volunteers have been set up after the grisly finds in Thamesmead in the last month.