In fairness, the US would be idiotic to renege on their assurances. That essentially would be a valid reason to block any future extraditions. Saying that, we

In fairness, the US would be idiotic to renege on their assurances. That essentially would be a valid reason to block any future extraditions. Saying that, we live in strange times where countries like the UK, which always used to play by the rules, albeit the ones they wrote, now backs out of treaties where the ink is barely dry.