Elon Musk took aim at a limestone mine in Pennsylvania, where they said federal employee retirements are processed using an outdated system.

Federal employee retirements are processed using paper, by hand, in an old limestone mine in Pennsylvania. 700+ mine workers operate 230 feet underground to process ~10,000 applications per month, ...

The massive underground facility, which has been used to store archives since the 1960s, remains a crucial but convoluted hub for US government records.