Small-scale fishing

Small-scale fishing is the colloquial term for intercepted cell phone communication. Although exact operating procedures remain classified in the United States, its existence has been widely reported based on public counter-terrorism fieldwork.
Technology applications
This method of interception is capable of detecting any cell phone with a powered battery, regardless of whether the phone appears on to the end user.
History
The existence of small-scale fishing has been well known in intelligence circles since it was originally developed in the 1980s, after being proposed at a conference of the IEEE. Osama bin Laden was reported to have been particularly paranoid about use of this technology for tracking, requiring couriers to travel up to from before placing a battery into an operating cell phone.
 
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