I recall that as a child our family drove right onto the property ar Peach Bottom Generating Station. Dad had worked in the power industry so was perfectly comfy showing us all the buildings and machinery, even though he had not worked at that plant. It was like the modern equivalent of taking your kid down to the roundhouse and showing him the steam engines.
I have worked in the nuclear power industry for thirty years and for what you say to happen at an operating nuclear power plant is complete crap.
Unless you are badged at that plant you do not get in unless you are escorted by someone trained to escort visitors.