Left-wing streamer Hasan Piker and Code Pink co-founder Medea Benjamin face a federal subpoena over Cuba trips, part of a wider probe that could be bad news for pro-Cuba activist networks in the US.

• The Treasury is investigating up to 40 Americans for possibly breaking US sanctions law by supporting Cuba's communist government through aid convoys.
• Businessman Roy Singham allegedly funneled hundreds of millions into nonprofits pushing pro-China, pro-Cuba messaging, including over a million dollars to Code Pink.
• Investigators want financial, logistical, and communication records, and people working for a foreign government without registering as foreign agents could face prison.
• Piker's on-stream reaction was panic rather than defiance, a contrast with his past calls for violence against capitalists and his claim that America deserved 9/11.
• The bigger worry is the young male audience absorbing this content, many from fatherless homes with no one to push back.

Outlook: If records show foreign money flowing to these activists, criminal charges and foreign-agent registration cases are likely to follow.