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WORLD> Europe
London beefs up security for upcoming G20 summit
(Agencies/Xinhua)
Updated: 2009-04-01 14:06
London beefs up security for upcoming G20 summit
 
An armed police officer passes the front of 10 Downing Street, the official residence of Britain's Prime Minister Gordon Brown, in central London March 31, 2009. The G20 Summit will be held in London on Thursday. [Agencies]