WASHINGTON, Aug. 7 (UPI) -- U.S. counterterrorism officials are noting a troublesome drop in so-called "chatter" among suspected terrorists, CNN reported Saturday.
The decline in communication during the past few days appears similar to what occurred shortly before the Sept. 11, 2001, attacks, government sources said.
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In mid-July Pakistan authorities arrested a key al-Qaida suspect, Muhammed Naeem Noor Khan, but the terrorists' chatter continued.
Some intelligence sources suggest the decline in chatter may correspond to a series of arrests in Britain and Pakistan that produced key intelligence related to two men allegedly involved in helping al-Qaida operatives communicate with each other: Khan and Esa al-Hindi.
