It's such a good idea, why doesn't Paulson nationalize Countrywide (and all the others while he's at it)

It looks like the UK is seriously considering turning the Northern Rock Bank into the National(ised) Bank of Northern Rock.

And, so it is being said, this could be A Good Thing.

Think that solution will catch on with Hank Paulson. He's seemed pretty desperate of late and has tried a lot of other lead balloons.

Why not?