Britain Honors One-Week Anniversary Of Bombings

It was one week ago today that four terrorist bombs blew up in London, killing at least 52 people. Millions of people across Europe observed two minutes' silence today to honor the victims of the attacks.

Buses across the city stopped, airports fell silent and people came out of workplaces and homes onto the streets to remember those who died.

King's Cross station was the scene of the deadliest attack. The silence was marked with a ceremony involving rescuers, staff from London Underground and Network Rail and members of the public.

The bombings are being blamed on four men who apparently died in the attacks. Three of them are identified as Britons of Pakistani descent. Police aren't sure if they intended to die in the blasts.

They're continuing the hunt for a suspected mastermind, widening the search to a new area yesterday with a raid on a home outside London.