London Bombing Anniversary

London Underground employees observe a minutes silence outside the Russell Square tube station in London, Friday, July 7, 2006. Friday is the first anniversary of the day four suicide bombers attacked London's transit system, killing 52 commuters and themselves by detonating explosive-laden backpacks on three subway trains and a London bus.

A British police officer reads messages placed on flowers in the memory of the July 7, 2005 attacks in central London's Tavistock Square, site of the bombing of the No. 30 bus one year ago, in central London, Friday July 7, 2006.

Londoners react in central London's Tavistock Square, site of the bombing of the No. 30 bus on July 7, 2005, in central London, Friday July 7, 2006.

A police officer searches a bag on a platform at Aldgate underground station in east London, Friday, July 7, 2006.

A police officer watches passengers as they leave a platform at Aldgate underground station in London, Friday, July 7, 2006.

Members of the public look at the flowers that have been laid at King's Cross station memorial garden Friday, July 7, 2006, in London, in honor of the commuters who lost their lives during London's terrorist attacks one year ago.

An unidentified relative of a victim of the July 7, 2005 bombing attacks lays flowers in London's Tavistock Square, Friday July 7, 2006. Friday marks the first anniversary of the day four suicide bombers attacked London's transit system, killing 52 commuters and themselves by detonating explosive-laden backpacks on three subway trains and a bus.

Susan Harrison, a victim of last year's London Bombing, receives a hug outside Russell Square underground station in London after laying flowers, Friday July 7, 2006. Friday marks the first anniversary of the day four suicide bombers attacked London's transit system, killing 52 commuters and themselves by detonating explosive-laden backpacks on three subway trains and a bus.

Susanna Pell, who was in the second carriage of the Edgware Road tube train when a terrorist bomb went off, lays flowers at the station Friday, July 7, 2006, in remembrance of those who lost their lives in the bombings on this day last year.

Police officers patrol the concourse which leads to the Piccadilly Line of the London Underground at King's Cross Station in London, Friday July 7, 2006.

A written message to George Psaradakis, the driver of the number 30 London bus involved in last year's bombing, is seen on his wreath placed in memory of the victims of the bombing attacks in central London's Tavistock Square, Friday July 7, 2006.

A woman weeps while being consoled by a Salvation Army officer at King's Cross station memorial garden, in London, Friday, July 7, 2006. Flowers have been laid in honor of the commuters who lost their lives during London's terrorist attacks last year.

London Mayor Ken Livingstone, second from the left; Tessa Jowell, third from the left, Secretary of State for Culture; Peter Hendy, left, TFL Commissioner and Tim O'Toole, fourth from the left, London Underground Managing Director, lay flowers in honor of the commuters who lost their lives during London's terrorist attacks at King's Cross memorial garden in London, Friday, July 7, 2006.

Two police officers stand outside the Russell Square underground station in London, Friday, July 7, 2006.

Family members and friends visit the Peace Garden at Edgware Road tube station, London, to pay their respects to those who lost their lives in the terrorist bombings one year ago, Friday, July 7, 2006.

A commuter reads the front page of a newspaper, headlining the bombings in London last year, in an underground train in London, Friday, July 7, 2006.

A woman reacts as she lays a flower tribute on the first anniversary of the London bombings, in London, Friday, July 7, 2006.

Commuters board a London bus, in central London, Friday, July 7, 2006.

A Policeman and sniffer dog search outside Russell Square tube station in London, Friday, July 7, 2006.

A sign indicating the Edgware Road underground station in central London, Friday, July 7, 2006.