$SING Cash transaction businesses are a tempting target for thieves, and the lack of oversight at times leads to lost tax revenue. It's a situation that Senator Elizabeth Warren, a member of the Senate Banking Committee, is anxious to change. As the Associated Press initially reported, Warren and nine other senators have called upon the Financial Crimes Enforcement Network to issue new and stronger guidance allowing banks to provide services to marijuana shop vendors. The moves are a significant encouragement to payment processors supporting the cannabis industry, as well as other industry players.

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