Having said this, after having listened to 100+ episodes of this podcast, I have yet to spot a single lie, although they may still exist with a very small probability. The reason why any fact checking step has not been added to this podcast is because it hasn't proven to be too necessary in the first place.

I have a different project "newssurvey" which uses external data and has citations for claims, although I still need to add an extra citation verification step for it. Perhaps in time I will.