>The problem is how they are managed . If you just dump problem families in them the you will have a problem. It only takes a few troublemakers to pull an area down so they should be aggressively managed You keep a few sink areas for those who cause problems and move them out and into those areas quickly.
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>Spend a little money on a problem and you'll save yourself a lot in the long run.

This is the US, any such project will be done once, in a semiposterior way, just to prove that it was bad to start with, and that it can't work. Then it would be dragged as a constructive proof that such-and-such doesn't work.

There is a significant political will here to run such projects, and that will is negative. Thus it becomes a self fulfilling prophecy, i.e. it won't work because the viewer from Idaho asked for it.