clipped from: blog.wired.com 
Pretty soon, cops won't just be packing stun guns. They'll be carrying electrically-charged riot shields, zapping their unruly without unholstering their weapons. That is, if the folks at Taser International have their way.
The company just introduced the "Taser Shield Conversion Kit featuring the Taser Repel Laminate Film Technology."
The kit "features a peel and stick perforated [f]ilm, power supply and necessary conversion equipment. This laminate becomes electrified providing a powerful deterrent to protect officers and keep suspects or rioters at bay." What could possibly go wrong?