Interfaces (areas where one can exploit differential rates of taxation, etc) are some of the most marvelous structures in economics; they introduce strong mechanisms for expressing and relieving economic, migratory, and political selective pressures. Interfaces are what make federalism so great - via political 'natural selection' punishing bad policies and rewarding good ones. Interfaces and differentials preserve liberty in the long-term.
I am all but assured this is merely Paulson's prelude to calls for "enhancements" in the global socialist order. More Keynesian/fascist assaults on freedom, with American sovereignty abdicated to the like of the IMF, WTO, UN, etc. "And if you disagree, you are an isolationist populist know-nothing kook, probably with anti-Semetic tendencies..."
AMEN, RC gone amuck!