Story perspectives
HSI launches Operation Puppet Master, seizing union records in Minnesota
8/18/2026
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Story summary
- U.S. Homeland Security Investigations (HSI) launched Operation Puppet Master, a surveillance program in Minnesota.
- The program began after agents killed nurse Alex Pretti and protester Renee Good was shot.
- Attorney Kevin Riach filed documents that HSI agents infiltrated churches, parks, libraries and union halls and seized labor-union and Sunrise Movement records.
- Attorney Daniel Rosen said he could not cite violent acts by the defendants and warned charges will follow investigations.
