NSA growth fueled by need to target terrorists

Posted by raganwald on Monday July 22, 2013 @01:15PM
from the washingtonpost.com dept.

http://www.washingtonpost.com/world/national-security/nsa-growth-fueled-by-need-to-target-terrorists/2013/07/21/24c93cf4-f0b1-11e2-bed3-b9b6fe264871_print.html

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Re:NSA growth fueled by need to target terrorists by raganwald on Monday July 22, 2013 @01:15PM (#6085072)

I'm curious: How do they detect the location of a cell phone that is turned off?

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Re:NSA growth fueled by need to target terrorists by happypatrik on Monday July 22, 2013 @08:57PM (#6087524)

"Some handsets can't be fully powered down without removing the battery; for instance, some Nokia models will wake up when turned off if an alarm is set." (http://news.cnet.com/2100-1029-6140191.html) I'm guessing that there even might be models with built in battery backup for this kind of functionality.

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Re:NSA growth fueled by need to target terrorists by cinquemb on Monday July 22, 2013 @09:08PM (#6087564)

And with that: Cellular devices are designed to transmit some kind of pilot signal even when turned off but with operational battery

http://www.endoacustica.com/gsm_interceptor_en.htm

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