U.S. -- It could get a little more expensive to drive on highways in some states under a proposal to add tolls on some freeways.

Of course, we're used to paying tolls in New York. But the states in question are looking at pay-roads as a way to ease gas and other transportation taxes.

Pennsylvania is considering tolls on I-80, Virginia wants fees on I- 81, and trucks may soon face tolls on Missouri's I-70.