Expanded sports betting fuels fears about gambling addiction

FILE - In this Monday, May 14, 2018 file photo, people make bets in the sports book area of the South Point Hotel and Casino in Las Vegas. Those who deal with compulsive gambling are worried that a rapid expansion of sports betting in the U.S. could cause more people to develop gambling problems. The U.S. Supreme Court on Monday cleared the way for states to legalize sports betting. (AP Photo/John Locher, File)

ATLANTIC CITY, N.J. — For sports leagues and gambling industries, the imminent expansion of legalized sports betting promises a bonanza. For the experts and organizations already concerned about pervasive problem gambling, it promises a whole new roster of worries.