Britain's Prime Minister Blair stands with police officers as he observes two-minute silence in memory of victims of London bombings at Downing Street in London. Britain's Prime Minister Tony Blair (R) stands with police officers as he observes a two-minute silence in memory of the victims of the London bombings, in the garden of 10 Downing Street in London, July 14, 2005. The British capital led the tributes on Thursday as people across Europe joined a two-minute silence to mark the July 7 London bombings that claimed at least 52 victims. REUTERS/Odd Andersen/AFP/WPA Pictures of the year 2005