Mu under Antarctica?

After reading the last article the Native American Tradition of Mu being under Antarctica after a polar shift might make sense. Because of Mu like Atlantis and Lemuria all being space faring nations, the fact that there is radiation melting parts of Antarctica now might make sense in this context. However, what if Russia, China or the U.S. just drilled a hole in this area to hide a nuclear mistake and poured whatever it is down that hole? Either or another explanation might be the answer here.

I'm not sure whether Atlantis had ships that travel beyond the Solar System sort of like us. But, Mu and Lemuria likely were Galactic Space faring nations. The theory is that when Mu Sank (either where the Hawaiian Islands are now or under Antarctica that Galactic Space travel was lost by so many qualified technicians dying in the cataclysm. It would be like if all computer techs lived in Silicon Valley and one day California sank into the ocean and no one could use the Internet anymore. The same was true then of Galactic Travel.