Reply #33: AP link touching on this

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ABC News, citing unidentified officials, reported that the attacks were connected to an al-Qaida plot planned two years ago in Lahore, Pakistan. Names on a computer that authorities seized last year from Muhammad Naeem Noor Khan, an alleged Pakistani computer expert for al-Qaida, matched a suspected cell of young Britons of Pakistani origin, most of whom lived near Luton, where the alleged suicide bombers met up on their way to London shortly before last week's blasts, according to the report.

Authorities have now discovered ties between Mohammed Sidique Khan - one of the July 7 bombers - and members of that cell who were arrested last year, ABC said.

http://www.guardian.co.uk/worldlatest/story/0,1280,-5142045,00.html