Tokyo ( CNN ) -- A Japanese government report Monday heaped fresh criticism on the operator of the nuclear power plant where a disastrous accident was set off last year by the devastating earthquake and tsunami that hit the country . The measures taken by Tokyo Electric Power Co. ( TEPCO ) , the plant operator , and the Japanese nuclear regulator to prepare for disasters were `` insufficient , '' the report by a government-formed panel of investigators said , and the response to the crisis was `` inadequate . '' The crippled Fukushima Daiichi plant spewed radiation and displaced tens of thousands of residents from the surrounding area in the worst nuclear accident since the 1986 Chernobyl disaster in Ukraine . Even now , more than one year after the disaster began , TEPCO does not seem aggressive enough in examining the causes of the accident at the plant to prevent a recurrence , the 10-member panel , led by Tokyo University engineering professor Yotaro Hatamura , said in the report Monday . The report , the fourth and final one on the nuclear disaster , comes amid growing anti-nuclear protests in Japan . It said interference by the prime minister at the time , Naoto Kan , created confusion in the response to the crisis . It recommended that all nuclear operators in the country conduct a comprehensive risk analysis of their facilities . The results of the investigation Monday follow a damning parliamentary report earlier this month that said the crisis was a `` man-made disaster '' resulting from collusion between TEPCO , regulators and the government . That report said the disaster should have been predicted and prepared for . Video : What caused the Fukushima disaster . A February report by independent scholars and journalists also concluded the plant operator could and should have done more . Only TEPCO 's own internal report in May said no one could have predicted the scale of the earthquake or the devastating tsunami that followed . However , it did admit it was not fully prepared and acknowledged criticism it took too long to disclose information . TEPCO also found itself under further scrutiny over the weekend when the Japanese Ministry of Health , Labor and Welfare said it was investigating a report that subcontracted workers at the damaged Fukushima nuclear plant were told to use lead covers in order to hide unsafe radiation levels . As the official investigations into the causes of the disaster at the power plant conclude , attention is shifting to what comes next for the nuclear power industry in Japan . Video : Japan ends nuclear freeze . The government has been holding public hearings around the country to try to gauge public opinion regarding three options it has put forward for a medium-term energy plan . It is expected to decide next month whether to reduce the country 's nuclear power to zero as soon as possible , aim for a 15 % nuclear role by 2030 or a 20-25 % share by the same date . Whichever is chosen , it will be a far cry from the energy policy in 2010 , which aimed to raise nuclear power 's role to account for more than half of electricity needs by 2030 . The anti-nuclear movement is very clear about which option it wants : the grassroots opposition says Japan must become nuclear-free and the number of people making this call is growing . Tens of thousands are gathering outside the prime minister 's residence every Friday . Last Friday was the seventh protest that Nagisa Saito has attended . `` What impresses me most is ... people never gave up and the crowd is getting bigger and bigger , '' she said . `` Even on a bad rainy day like today , we see this many people gathered , it 's amazing . '' Video : Nuclear disaster spreads to houses , food . Prime Minister Yoshihiko Noda hears the voices , but so far he is not being swayed by them . He authorized the re-activation of two nuclear power plants earlier this month , claiming that without nuclear power , the country and the economy will suffer . `` Japanese society will not be able to function if there is a decision to permanently halt nuclear power generation , '' Noda said last month . But one anti-nuclear protester , who gave his name only as Ozaki , said it was not a simple choice between nuclear and blackouts . `` If there is a power shortage , there are alternatives , '' he said . `` What about coal-fired power stations , hydro-electric power stations , or we can just survive with what we have . We have to be patient , but even with blackouts , we can survive without nuclear power . '' CNN 's Junko Ogura contributed to this report .
The latest report comes from a government-formed panel of investigators . It follows a scathing parliamentary report that described a `` man-made disaster '' The report Monday criticizes the plant operator 's lack of preparedness . Japan faces questions over the future of its nuclear power industry .