Income tax in the United States under tax treaties. Foreign persons are taxed on income from a U.S. business and gains on U.S. realty similarly to U.S. persons. Nonresident aliens who are present in the United States for a period of 183 days in a given year are subject to U.S. capital gains tax on certain net capital gains realized during that year from sources within the United States. The states tax non-resident individuals only on income earned within the state (wages, etc.), and tax individuals and corporations on business income apportioned to the state. The United States has income tax treaties with over 65 countries.
The Cold War and the Income Tax it his business to study the state in theory and in practice. The person who is in the weakest position to attack the state is he who has largely ignored its potential for evil while strongly backing its expansion on humanitarian grounds and is only stirred to protest when he falls foul of it through his own negligence. That exactly describes Wilson's position. In his book he tried to evade his own inconsistencies by arguing that most of his income tax went on defence spending induced by Cold War paranoia. But then he had not paid his state income taxes