Amid recent ceasefire talks between Russia and Ukraine, President Donald Trump suggested the U.S. should take control of Ukraine’s nuclear power plants for long-term security, the Associated Press reported.

“American ownership of those plants could be the best protection for that infrastructure,” Trump suggested, according to a later statement.

When on May 7, 2013, the Kewaunee nuclear power plant in rural Wisconsin was shut down, it took with it more than 600 full-time jobs and more than $70 million in lost wages, not including temporary employment from refueling and maintenance outages. Taking into account indirect business-to-business activity, the total economic impact of the closure of the single-unit pressurized water reactor was estimated to be more than $630 million to the surrounding three-county area.

Control room operators at Entergy Corporation’s Indian Point Unit 2 will permanently shut down the 1,028-MWe pressurized water reactor today, April 30, after more than 45 years of producing electricity for New York. The remaining operating reactor at Indian Point, the 1,041-MWe Unit 3, is scheduled to be retired exactly one year from now, on April 30, 2021.