HOME Secretary Charles Clarke told Britain to be prepared for more suicide attacks
"We have to organise ourselves on the basis that there are other people prepared in this way," he said.
"We have to protect ourselves in the best way that we can against that.
"I come back to intelligence because in all this, that is at the centre of ability to understand that.
"We have to assume there are others who are ready to do the kinds of things that these people did last Thursday."
Mr Clarke said he was "surprised, yes, and I was shocked as well" that the bombers were British-born.
"The whole of the Muslim community, supported by society, stands out against this kind of behaviour." .