Bill introduced to criminalize warrantless cell phone surveillance

The use of "stingrays" that capture data about cell phone calls has become increasingly controversial, but law enforcement agencies continue to embrace the devices. Just last week, IRS Director John Koskinen was questioned in the US Senate about his agency's acquisition of a stingray for its criminal investigations. Today, Rep. Jason Chaffetz (R-Utah) has said he'll introduce a bill that will criminalize any use of a stingray without a warrant.

http://arstechnica.com