It does not take a rocket scientist to figure out 5 cents a minute, then toss the phone away is great way for any terrorist to keep his conversations from being traced. I say ban these phones.
I wouldn't say ban them, since I know quite a few law abiding US citizens who buy them for their families. Possibly they could be registered at the point of sale with a credit card? Me, I pay a fortune + taxes for 4 Verizon cell phone plans....UGH!