Earlier quoted context omitted.
You know, you joke (I think?) but data center companies could genuinely at least open up for tours to try to appeal to the public, if public approval is apparently such a concern. It's funny that they haven't done it at all yet. Think nuclear power plants in the 60s or 70s, many of them were open for tours or school field trips or such to try to make them more appealing to the populace around them. I haven't heard of…
DC tours are probably a nightmare to do in a PCI-compliant (and the myriad other standards they claim compliance with) environment.
The servers themselves are in cages, of course, and presumably the tour wouldn't actually go into those. Plus, yeah, what the other comment said.