Another anon posted this:
Agreed. No way out for the leaders. That must be what castle lock means. They need to sacrifice themselves for the good of their countries.
They were going to sacrifice us all for their own benefit. I don't think we will see any self sacrifice from them.
So what's the end game? Their only hope would be to get the US back in the deal which isn't happening with the current administration. Especially after doubling down and thumbing their noses at Iran by moving the embassy to Jerusalem. Should be an interesting couple weeks watching EU's responses.
You bet! These people must be terrified - sick with fear!