What's up with the quotes from the source saying Mueller isn't contending Barr's letter was inaccurate though?   Just that it lacked "context"?   Are they just trying to soften the blow a bit? Why?   Saying Barr's letter was wrong is "nature, context and substance" sounds like Mueller did in fact belive it was in some ways inaccurate.   Maybe just from a legal perspective, Barr didn't tell any factual lies, so it was technically accurate, but rather incomplete and misleading.