Mayor Boris Johnson has asked Thames Water bosses to an Olympic summit.
It follows two days of chaos on the caused by a burst water main.
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Wembley Stadium, Wimbledon and The O2 have been bolstering security measures.
The 6 foot long boa constrictor was found dumped in the alley in Camden on Monday.
Chris Gard and Connie Yates want permission to take son Charlie to America for a therapy trial.