ONE of the London suicide bombers was allowed to tour the Houses of Parliament as the guest of an MP months after police and intelligence services became aware of his links to another alleged bomb plot, it emerged last night. Mohammad Sidique Khan, 30, was a guest of the Labour MP Jon Trickett in July 2004, four months after he had been identified by intelligence officials as a "criminal associate" of one of the subjects of a major counter-terrorism operation that had resulted in several arrests.
