Joseph Stromberg at Vox has a very concise argument for the Idaho Stop. There isn't really anything new there, but for those who don't read bike blogs I think it includes everything one needs to know to understand the issue.
Personally, I'm torn on the use of the "right-turn on red" example. It does show a time that we decided to let road users ignore current law for the sake of expediency, but there's some research that it wasn't good for pedestrians or cyclists, and I don't want to have to defend it. Nor do I want to say that right turn on red made our streets less safe, but it's a good precedent for what I want to do.