Radiation accidents

FILE - In this Nov. 22, 2018, file photo, International Atomic Energy Agency (IAEA) Director General Yukiya Amano of Japan addresses the media during a news conference after a meeting of the IAEA board of governors at the International Center in Vienna, Austria. The IAEA said Monday, July 22, 2019, it is announcing with regret the death of Amano. The Secretariat did not say how Amano, who was 72, died. (AP Photo/Ronald Zak)

FILE - In this March 22, 2019 file photo, the construction site of Vogtle Units 4 at the Alvin W. Vogtle Electric Generating Plant is seen, Friday, March 22, 2019 in Waynesboro, Ga. It’s not just cutbacks in nuclear plant inspections. Nuclear plant regulators are planning fewer mock commando raids to test plant defenses against terrorist attacks and are considering minimizing some safety warning, part of the rollbacks sought by the industry and gaining traction under President Donald Trump. (Hyosub Shin/Atlanta Journal-Constitution via AP)

Ken Jeong, left, and D'Arcy Carden announce the nominees for lead actress in a drama series at the 71st Primetime Emmy Nominations Announcements at the Television Academy's Saban Media Center on Tuesday, July 16, 2019, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)

Ukrainian President Volodymyr Zelenskiy, foreground, visits the "new safe confinement" shelter that spans the remains of the Chernobyl nuclear power plant's Reactor No. 4, in Chernobyl, Ukraine, Wednesday, July 10, 2019. A structure built to confine radioactive dust from the nuclear reactor at the center of the 1986 Chernobyl disaster was formally unveiled on Wednesday.(Ukrainian Presidential Press Office via AP)

This image released by Tokyo Electric Power Co. (TEPCO) shows the operation floor above a cooling pool at Unit 3 of the Fukushima nuclear power plant in Okuma town, Fukushima prefecture, northeastern Japan, Monday, April 15, 2019. The operator TEPCO of the tsunami-wrecked Fukushima nuclear plant began removing fuel from the cooling pool at one of three reactors that melted down in the 2011 disaster, a milestone in the decades-long process to decommission the plant. (Tokyo Electric Power Co. via AP)

Yoon Chang-yul, second from right, a senior official at the Prime Minister's Office, announces the government's stance on the World Trade Organization's ruling in favor of South Korea 's import ban on Japanese seafood at the government complex in Sejong, South Korea, Friday, April 12, 2019. South Korea on Friday welcomed the decision and said it will continue to block all fishery products from Fukushima and seven neighboring prefectures to ensure "only foods that are confirmed as safe are put on the table. (Jin Sung-chul/Yonhap via AP)

FILE - In this Jan. 25, 2018, file photo, an installation of a dome-shaped rooftop cover housing key equipment is near completion at Unit 3 reactor of the Fukushima Dai-ich nuclear power plant ahead of a fuel removal from its storage pool in Okuma, Fukushima Prefecture, northeast Japan. Japan has partially lifted an evacuation order in one of the two hometowns of the tsunami-wrecked Fukushima nuclear plant for the first time since the 2011 disaster. The action taken Wednesday, April 10, 2019, allows people to return about 40 percent of Okuma. The other hometown, Futaba, remains off-limits as are several other towns nearby.(AP Photo/Mari Yamaguchi, File)

FILE - In this March 16, 2011, file photo, steam escapes from Exelon Corp.'s nuclear plant in Byron, Ill. The nuclear power industry is pushing the Nuclear Regulatory Commission to cut back on inspections at nuclear power plants and throttle back what it tells the public about plant problems. (AP Photo/Robert Ray, File)