Massachusetts state lottery officials knew for years that a small group of gambling syndicates had virtually taken over a game called Cash WinFall — winning most of the prizes during high payoff periods — but did nothing about it until the Globe began investigating, according to Inspector General Gregory W. Sullivan. Sullivan’s report details the way a handful of math and science wizards, including MIT undergraduates looking for an interesting school project, turned Cash WinFall into a nearly fulltime business.
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