Ex-MI5 head: 'Regret' 7/7 could not be stopped
Eliza Manningham-Buller, former director-general of MI5, has expressed regret that it was not possible to stop the 7/7 attacks in London.
She was speaking during her second 2011 Reith Lecture, which will be broadcast on BBC Radio 4 on Tuesday 13 September 2011 at 09:00 BST and repeated on Saturday 17 September at 22:15 BST. You can also listen via the Radio 4 website or download the programme podcast.
13 Sep 2011