China Blocks Cell Signals in Classrooms

Select China universities will begin blocking cell phone signals inside classrooms, specifically exam halls to stop the cheating menaces of the world. Cheating has become a high-tech problem, with students using cellphones and other portable electronic devices to gain an unfair advantage while taking tests.

I'd probably be more interested in this technology to stop cellphones from ringing every 10 minutes in massive lecture halls than hindering cheaters. Two birds, one stone. It works.

China goes high-tech to stop exam cheats [Reuters Via Yahoo!]