I am not sure if it's secrecy or safety. Tr sorry about the orange aside, it seems the concern is less about whether an outsider would see a sphere and know tha

I am not sure if it's secrecy or safety. Tr sorry about the orange aside, it seems the concern is less about whether an outsider would see a sphere and know that it is cricitcal to the design, and more that a scientist might leave an important model or an actual plutonium put out where it shouldn't be, and now only another scientist can tell that it's out of place. Seems reasonable to say "anything that looks like a plutonium pit should stay locked up or an alarm should be raised."