sentences:  All of these well-publicised events, undermined public support for the U.S. nuclear industry in the 1970s and the 1980s.In 2002, the USA had what former NRC Commissioner Victor Gilinsky termed "its closest brush with disaster" since Three Mile Island's 1979 meltdown; a workman at the Davis-Besse reactor found a large rust hole in the top of the reactor pressure vessel.Recent concerns have been expressed about safety issues affecting a large part of the nuclear fleet of reactors.