Prepaid Cellphones

I think prepaid cellphones provide a great way for people who don't have the money to buy into a cellphone contract with a way of communication. They are also a great learning tool for kids to show them the responsibility of paying a bill and keeping track of their own minutes and making sure that they do not run out. However a lot of criminal activity is used because of how easy they are to purchase and the anonymity of the phone number. I think the best way to solve this is have at least two forms of identification when bought such as a birth certificate, student ID,license etc. Then when bought the name should be linked to the serial number on the phone. People who are using these phones for legal reasons shouldn't have a problem with this and the convenience of having a prepaid phone would continue and also be more secure.