Former Reagan OMB Director David Stockman's take on the Ryan plan: "It doesn't address in any serious or courageous way the issue of the near and medium-term deficit," David Stockman told me in a Thursday phone interview. "I think the biggest problem is revenues. It is simply unrealistic to say that raising revenue isn't part of the solution. It's a measure of how far off the deep end Republicans have gone with this religious catechism about taxes." Couldn't agree more. Since some posters here are libertarian, here's a libertarian economist's take on Ryan's plan.