On July 13, 2004, a young Pakistani al-Qaeda operative named Muhammad Naeem Noor Khan was arrested in Pakistan (see July 13, 2004). US intelligence agents find what they later call a “treasure trove” of information in Noor Khan’s computers and documents. [CNN, 8/2/2004] They realize that Khan has served as a communications hub of sorts for al-Qaeda. He is in frequent contact with dozens of other al-Qaeda terrorists around the world and passing messages back and forth from more senior al-Qaeda operatives. Intelligence agents quickly realize that, through Khan, they can penetrate deep into the core of al-Qaeda’s current operations. Around the weekend of July 24-25, the Pakistanis convince Khan to “turn,” or become a double agent. Khan sends e-mails to dozens of activists in Indonesia, Malaysia, Pakistan, India, Bangladesh, and other countries. He requests that they contact him immediately and reveal where they are. As the emails come back, intelligence agents all over the world go into action to monitor those who have replied to Khan. [Guardian, 8/8/2004] Newsweek later reports that he sends e-mails to at least six contacts in the US, but the results of this are unknown. A senior US intelligence official confirms that Khan contacted people in the US, but believes number is less than six. [MSNBC, 8/8/2004] Some of Khan’s contacts are quickly arrested, including Ahmed Khalfan Ghailani, a Tanzanian wanted since 1998 for his role in the bombing of the US embassy in his home country (see July 25-29, 2004). [Suskind, 2006] Some communications take time to reach him. He is sometimes sent handwritten notes or computer discs from the mountains where bin Laden and other top leaders are hiding out. These are delivered by secretive relays of couriers who never see each other, using dead drops to avoid being traced. Other messages come from far-flung intermediaries who forward e-mail without knowing what it means, where it is going, or who is sending it. [MSNBC, 8/8/2004] However, on August 1, Bush administration officials leak Noor Khan’s name to the press and the New York Times prints his name one day later. This only gives one week for the sting operation to work. Intelligence officials are crushed the operation has to end before it could expose many more al-Qaeda operatives (see August 2, 2004).