 support peaked at 62% in 2010, and has been in decline since.According to a CBS News poll, what had been growing acceptance of nuclear power in the United States was eroded sharply following the 2011 Japanese nuclear accidents, with support for building nuclear power plants in the U.S. dropping slightly lower than it was immediately after the Three Mile Island accident in 1979.Only 43 percent of those polled after the Fukushima nuclear emergency said they would approve building new power plants in the United States.