The AP is reporting that, despite the FCC ban on cellphone jammers, churches
and other performance halls, restaurants, hospitals have installed cellfone
blockers. They are legal in some countries.

Great!!!

I'm tired of ringing phones in concerts. Once at the Metropolitam Opera a guy
in the row behinf\d me took a call. I paid $300 for tickets and he spoiled it.
I tried to follow him outside to feed him a knuckle sandwich, but lost him.
Thank God gopr these jammers: it'll help me avoid jail.

In hospitals the signals could jam meditronics devices.