Home Secratary, Charles Clarke says there is no judicially proven link between the bombers of 7th July and those of 21st July.

“It’s obvious that there was a group that worked on the 7th of July and another group that worked on the 21st July.

“The extent to which they had support, training, induction and even tasking from outside the groups that actually committed the attacks themselves is something which is being investigated very, very fully and comprehensively.

“I think it would be very, very surprising if they weren’t linked in some way, (but) there is not a direct linkage yet formally established to be able to make that assertion.”

He commented also on the shooting of the Brazilian, Jean Charles de Menezes, an incident which is raising more and more questions:

He also refused to be drawn on media reports that there is no CCTV footage of the shooting of innocent Brazilian Jean Charles de Menezes, 27, on July 27 at Stockwell underground station. He said the whole incident was “worrying” and he would await the results of an inquiry into the death.

Worrying is the word. The British people will fully support security services that made an innocent mistake. But the longer the questions linger the more people are inclined to fill the gaps with their own theories. None of those theories will enhance the security services’ reputation.