> So, maybe risk (3) is not apparent to Obama, because there's no left,
> no Soviet Union, no serious union movement, etc.
But there is indeed a counterweight, namely the global semi-periphery. (The EU never quite fulfilled this role, due to its own Euroliberalism and Maastricht monetarism, while Japan was always too small and export-dependent to rein in the US).
The semi-periphery finances the US economy these days, and its developmental states keep getting stronger, bigger, and smarter. My best guess (of course, I could be wrong) is that BRIC 2.0, the next generation of developmental states, is about to go live in places like Indonesia, Ukraine and parts of Central Asia.
-- DRR