Big Media Matt makes a pretty good attempt to describe what's going on.
Increasingly I'm getting the impression that this stuff is "all too complicated" for people to understand. It isn't that complicated, but it's complicated enough that the explanations can be confusing. I revert into academic mode when I start talking about this stuff, possibly sacrificing clarity for precision. In any case, all good writers are encouraged to find ways to communicate the details of the Bush plan in concise and easily understandable bits.
