Those arrested were all born and brought up in Britain. Security sources played down suggestions of any direct link between the arrested men and al-Qaida.

Sources referred to groups of young radicalised Muslims who were "difficult to label" but viciously anti-western. Security sources suggested that the motive of the alleged planned attacks was anti-western but not dictated by anyone in the al-Qaida hierarchy.

The small towns they lived in in southern, suburban and rural England are exactly where I grew up, which sends a shudder down my spine. Evil has come to the Shire! What this amounts to, I think, is theological, ideological terrorism that requires no state sponsor as such and no actual network like al Qaeda. And this is surely the trend. It certainly looks as if Madrid was a similarly loosely-connected operation. I'm not saying it means we should ignore state sponsors, like Iran. Au contraire. But I am saying that a policy that focuses entirely on state sponsors is going to miss an important part of the problem.