In these circumstances, does it matter to public safety whether it did or didn't? It seems more important to me whether it COULD or COULD NEVER originate like this. I think things are tilted pretty heavily towards the COULD side. So if we, as a species, continue research like this (and I think we need to), it needs to be strictly quarantined. If you set foot in a facility like this, you don't get to rejoin the rest of society until you go through a multi-week quarantine site. It's remote work.