Originally Posted by dirtyhippy

I'm glad you aren't in charge of legislating my area. The world is an uncertain and sometimes dangerous place. Any number of accidents may occur, and there is no way to prevent all of them. Heavy-handed attempts at "accident prevention" like what you are suggesting have enormous social costs and can even wind up increasing the number of injuries. Off the top of my head, here are some problems with radio scramblers in cars:
Would prevent passengers from safely using these devices.
Would interfere with systems such as OnStar
Would interfere with people using their phone to call 911.
Would be difficult/impossible to contain radio jamming to the car. Nearby pedestrians on phones would be affected as well. A crowded freeway packed with these devices would be a nightmare in this regard.
These devices would probably be very easy to disable.

My point is not that we should simply accept all accidents as inevitable, but that we need to maintain a sense of personal responsibility. Blanket restrictions/technological solutions will not solve this problem.