Others have written to the Missouri Gaming Commission to say the change would lead problem gamblers back to temptation.

WSJ: States Rethink Gambling Limits

Experts say gambling addicts make up a small percentage of gamblers, but there have been signs of higher rates of addiction in places with easier access to casinos and other forms of gambling.

WSJ: States Rethink Gambling Limits

Addiction specialists say exclusion lists are difficult to enforce without a requirement that casinos check gamblers' IDs, and they need to be accompanied by treatment programs.

WSJ: States Rethink Gambling Limits