Four decades after the Three Mile Island nuclear accident, Americans are evenly split on the use of nuclear energy.

The 55% of Americans who favor using nuclear energy as a source of electricity is up four points since last year to its highest level since 2012.

Gallup's 1976-1986 trend on public support for building nuclear power plants chronicled a sharp increase in public opposition in the decade spanning the Three Mile Island and Chernobyl nuclear power accidents.

Cyberterrorism and U.S. adversaries developing nuclear weapons continue to rank as the most worrisome global issues to Americans, but fewer than in recent years find China's economic power highly concerning.

Despite concerns about a possible nuclear disaster in the U.S., 58% of Americans think U.S. nuclear power plants are safe, while 36% say they are not. Americans are divided on the issue of increasing the number of nuclear power plants in this ...

One year after the tsunami and resulting failure of the Fukushima nuclear power plant in Japan, a majority of Americans (57%) continue both to favor the use of nuclear energy and to believe that nuclear power plants are safe.

For the first time since Gallup began asking the question in 1994, a majority of Americans now oppose the use of nuclear energy. Forty-four percent are in favor, down significantly from 51% last year.

Americans see cyberterrorism as the most critical of 11 threats to U.S. vital interests. Nuclear weapons development by Iran or by North Korea are next, followed by international terrorism.

Read a review of where the American public stands on gun control, immigration, and climate change.

Americans remain evenly divided on nuclear energy, as they were in 2019, but this follows a period from 2004 to 2015 when majorities backed it. Support throughout has varied sharply by party.