Grab is wrong in stating that Americans "have one of the lowest rates of tax in the world." That may be true if you only consider the federal income tax. But in addition, Americans pay a separate and very steep tax for Social Security and for Medicare. Most also pay state income taxes, and many pay local (municipal or county) income taxes. In addition to these, there are local property taxes, state and local sales taxes, federal excise taxes, import duties, capital gains taxes, estate taxes, gift taxes, and a number of taxes diguised as user fees and licensing fees.

The problem is not that Americans are undertaxed; the problem is that Americans don't get good value for their tax money. So much of it is wasted on boondoggles, civil and military alike, while the USA still lacks a national health care program for anyone but the elderly and the very poor. Even those programs could stand vast improvement.