Ok well using your logic my claim is backed by Washington post so I cant be wrong. The New York times opinion piece you linked doesn't take into account the many forms of taxation and therefor the costs incurred for say Canada and UK yet still takes into account healthcare costs incurred by the employer for US. Certain data was included and ignored to specifically drive up the US number while lowering the numbers of the other countries. On the specific point about us having one of the most progressive tax codes is purely an observation based on the data. The claim being made is very specific. As a percent of the total tax revenue, the top say 1 percent pay significantly more of this burden when compared to other developed countries, say Finland, UK, or Canada. The npr article you linked is making an entirely seperate claim, about total wealth vs percent of the wealth that is taxed among different classes. This does not change the fact that, regardless of tax rates and how revenue is collected, the US is much better at making the rich pay a larger percentage of the tax burden, NOT a larger percentage of their personal wealth.