Janet Egan

That's also a risk with AI, of course, but neither side wants to create a rogue superintelligence or let any rando kill billions.

The US actually has a long history of cooperating with bitter adversaries, national security researcher Janet Egan told me, explaining that if American intelligence services become aware of a planned terrorist attack in Iran, they call up their Iranian counterparts to let them know.

Having verification tech and institutions in place is an example of a no-regrets move, exceedingly rare in geopolitics.

Good relations? The tools are in place to codify a deal.