[geggam]

States rights was decided during this little thing called the civil war.

Interstate travel cannot be regulated by the states and since freedom of movement is a right protected by the constitution.

You have to conclude interstate travel is a right. Granted the commerce clause can be used to regulate commercial travel but private travel cannot be ;)

[ceejayoz]

Interstate travel is a clear right.

The right to do it as the driver of a car is less clear, given that one can freely move between states in a bus, plane, boat, taxi, or as a car passenger.