At least 200 potential terrorists are actively planning suicide attacks while living freely in Britain, intelligence chiefs have warned ministers. A senior intelligence source has revealed that the figure is a "conservative" estimate of the threat facing the country from UK-based Islamist suicide bombers. The would-be killers are among 2,000 extremists who the security services have said are based in Britain and actively planning terrorist activity of some kind. The figures are contained within a secret government report on the "enduring terrorist threat" facing the UK from al-Qaeda and affiliated organisations, ... Earlier this year, classified intelligence documents disclosed by...