SITUATION EXPLAINED: Bernie Sanders is calling for an immediate pause on advanced AI and a ban on superintelligence. • In The Atlantic, he says the ban should hold until a new federal agency can make it safe, and he's introduced a bill with Rep. Greg Casar to create that agency • He quotes Altman on merging with machines, Musk calling humans a "biological bootloader," and Thiel hesitating on whether humanity should endure • 91% of Americans want AI guardrails, which makes unrestricted AI less…