The plan involves the United States taking more direct control over Venezuelan reserves as crime and steep logistical challenges discourage private investors.
The Trump administration intervened in a Swiss criminal investigation of Alejandro Betancourt, who has been helping Washington as an intermediary in Caracas.
Johan Sebastián Durán Guerrero was living in Biddeford, a small city in southern Maine, where he worked as a cleaner and food delivery driver. He had a partner and a 3-year-old daughter, neighbors said.