Answer:
The Three Mile Island Accident which occured on 28th of March 1979, caused many Americans to worry about Nuclear Power.
Step-by-step explanation:
The Three Mile Island Accident which occurred at the Nuclear Generating Station, Londonderry Township, in Dauphin County, Pennsylvania, near Harrisburg, as a result of partial meltdown of second reactor, causing subsequent radiation leak on March 28, 1979.
The accident was so massive that it was rated 5 out of 7 point International Nuclear Event scale, due to enormous casualties that it caused.