It's too late to stop "deep fakes". That technology is already in Photoshop and even built into some cameras. Also, regulate that and Hollywood special effects shops may have to move out of state.
As for LLMs making it easier to people to build destructive devices, Google can provide info about that. Or just read some "prepper" books and magazines. That ship sailed long ago.
Real threats are mostly about how much decision power companies delegate to AIs. Systems terminating accounts with no appeal are already a serious problem. An EU-type requirement for appeals, a requirement for warning notices, and the right to take such disputes to court would help there. It's not the technology.