A Saudi Al Qaeda operative suspected of involvement in the London 7/7 attacks has been arrested in northwestern Pakistan, FOX News has confirmed. The operative, Zabi-ul-Taifi, was arrested with six other militants on the outskirts of the northwestern Pakistani city of Peshawar, Reuters reported. "Taifi is among those arrested today," an intelligence official told Reuters on condition of anonymity. The nationalities of the other militants arrested are being established. One intelligence official told Reuters that it is believed Taifi was the "mastermind" of the July 7, 2005 bombings that rocked the London transportation system when homicide bombers set off explosions...