The Chinese economy is more than three times as carbon-intensive as the U.S. economy.

I pushed very hard on the Department of Justice to make sure they were not just challenging the people who came through the windows and doors of the Capitol but looking upstream to who might have been behind it.

I would hope and expect that would be honored.

Ramped-up enforcement is essential, but it is no substitute for addressing the fundamental injustice in the tax code.

My Republican colleagues and I may disagree on what makes a fair tax code, but we very much agree that everyone should pay what they owe.

Typical American taxpayers don't have the option to hide money abroad, so the wealthy who cheat on their taxes through offshoring also worsen income and wealth inequality.

I am on the Budget Committee where we look at 10-year increments, and your testimony that there is a 10-year increment out there of taxes owed but not paid of $7.5 trillion is pretty stunning.

Is Inspector General George correct that the IRS--I am quoting him here--``has not developed a reliable estimate of the international tax gap''?

We should start with the multi-pronged approach of the Biden administration.

Let me thank all the witnesses. This has been really, really helpful.

So one thing I will note as I close out my questioning: we have heard testimony today that 36 percent of missing tax revenues of the tax gap, 36 percent of that comes from 1 percent of the taxpayers.

The IRS conservatively estimates the tax gap--the difference between taxes owed and taxes collected--to be $441 billion per year.

My No Tax Breaks for Outsourcing Act would end the incentive for multinational corporations to shift profits offshore.

We need to continue to work on FATCA compliance.

. . . we need to continue to work on FATCA compliance. It's too bad that we couldn't put an extra `T' on it. Then it would say FATCAT, which would be such an appropriate acronym for it.

And will you help us define whatever we may need to do legislatively, or by way of oversight, to make sure we close that gap?

are these the people Senator Whitehouse cavalierly joked about at the end of the hearing when he lamented over the missed opportunity to add a T to the end of FATCA?

I see that it is not easy, but I think it is important to nail down the starting place that we are at right now.