Sen. Ron Wyden said in a letter that one U.S. phone carrier turned over Senate data to law enforcement without notifying the ...

Sen. Ron Wyden (D-Ore.) said Wednesday that three major phone carriers failed to establish systems to notify offices about ...

Senator Ron Wyden scribed a letter accusing major phone carriers including AT&T, Verizon and T-Mobile of "failing" to address surveillance issues.

In a letter to fellow senators, the Oregon Democrat alleged that carriers had failed to properly warn lawmakers about surveillance requests.

including AT&T, Sprint, T-Mobile and Verizon. The number of requests addressed by the study - the first time law enforcement's cell surveillance has been studied at a national level - surprised ...

Of those 301,816 requests, AT&T challenged 3,765 requests and provided ... containing content under the Foreign Intelligence Surveillance Act, affecting at least 35,000 user accounts, AT&T said.

Markey, a Democrat, had been tracking growing government use of wireless surveillance ... AT&T should follow its lead. Verizon said its report will show the number of law enforcement agency ...

AT&T breaks down its law enforcement ... Between 35,000 and 35,999 requests made under the Foreign Intelligence Surveillance Act The numbers are far less exacting when it comes to national ...