Some military research centers may have developed something that is far more advanced than whats available in public. (Wouldn't be surprising, considering their ridiculous budget.)
Perhaps this talk about dangerous AI in the past year is to acclimate the public to thinking about this issue before the reveal.
Secret government agency with hyper-advanced technology (AI, fusion, gravity control, etc.) keeps scientific advances from the general public and gradually trickles them out once they feel they can control the response properly.
Perhaps this talk about dangerous AI in the past year is to acclimate the public to thinking about this issue before the reveal.