Coalition still divided over counter-terror plans
The UK terror alert level is at 'severe', the second highest, meaning that an attack is thought highly likely.
However, politicians are still divided over how best to monitor the online activities of suspected terrorists.
David Cameron is keen for intelligence agencies to have new powers allowing them to access individual's online and mobile phone activity.
Critics including the deputy prime minister, Nick Clegg, have dubbed it a 'snoopers charter'.
June Kelly reports.