WASHINGTON, May 20 (UPI) -- As sports betting and prediction market platforms like Kalshi and Polymarket grow in popularity, U.S. senators on Wednesday weighed the need to regulate use of the platforms by minors. One main issue senators raised during a hearing by the Senate Commerce Subcommittee on Consumer Protection, Technology and Data Privacy was how prediction markets use social media to advertise their platforms to underage users, putting them at risk of a gambling addiction. "Young

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