Five major U.S. labor unions urged all senators to oppose the crypto market-structure Clarity bill, warning that it could threaten workers’ retirement pensions. According to CNBC, the letter was sent ahead of a Senate Banking Committee review scheduled for the 14th. The groups identified in the source are the AFL-CIO, Service Employees International Union, American Federation of Teachers, National Education Association, and American Federation of State, County and Municipal Employees. The new report adds the bill’s name, the timing of the Senate committee review, and the unions’ stated concern about pension risk.