The U.S. House passed legislation today that would prevent gamblers from using credit cards to bet online.
The measure could also block access to gambling Web sites.
The law would clarify and update current law to spell out that most gambling is illegal online.
But there would be exceptions for state-run lotteries and horse racing. Passage of the legislation isn't a safe bet in the Senate; Republican leaders don't consider the measure a high priority.
Critics say policing the Internet is impossible and that it would be better to collect taxes on it.