Which resulted from the accident at three mile island

In 1979 at Three Mile Island nuclear power plant in USA a cooling malfunction caused part of the core to melt in the #2 reactor. The TMI-2 reactor was destroyed. Some radioactive gas was released a couple of days after the accident, but not enough to cause any dose above background levels to local residents.

Hope this helps! ;)

because mexico wanted to choose a centralized location

the use of email to replace slower surface mail.