While it's hard to argue with Webster's dictionary, I think if you get a lawyer involved he would be able to explain the difference. There are some legal differences between the right and a privilege but the line is very fuzzy. Either way, both are granted by the government and if abused can be taken away.
It is true that felons lose the right to vote. There is some senator who is trying to pass a bill that will restore their right to vote in hopes that they will increase voter turnout. My feeling is that if you can't play by the rules of the society then you lose the rights that are granted by society.
Erik
