Ten years since the deaths of 52 people in the 7/7 London bombings, the British Prime Minister David Cameron's insisted the UK will 'never be cowed by terrorism'.
He'll attend one of a number of commemorations to mark the anniversary today.
So will some of the 700 people injured in the four bomb attacks on the capital's transport network, and the families of those killed.
Tony Blair was British Prime Minister at the time and has paid tribute to them.
