In addition, many of our laboratories studying nuclear fusion are closing, while France plans to open a nuclear-fusion reactor in 2019.

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That thinking changed on March 28, 1979, when a small valve stuck open, cooling water escaped and the reactor core of TMI's Unit 2 began to melt.

CNN: Three Mile Island, 20 years later

By the way, some argue that Petrobras should push the government to open the area of the port where the reactor is placed to the general public.

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