The United Nations’ Tax Equalization Fund (TEF) owes the United States nearly $180 million. Don’t blame the U.N. — the organization reported last summer that it was ready to remit the overpayment. Only one thing has kept it from doing so: The U.S. didn’t ask for the money.

Aside from a few members of Congress and some U.N. experts, hardly anyone gave the situation much attention. That is, until last week, when House Majority Leader Eric Cantor’s “YouCut” website included “Obtain Refund of Funds Owed to the U.S. by the U.N. Tax Equalization Fund” as one of three options to cut government spending. It won the vote.

Esther Brimmer, assistant secretary of state for international-organization affairs, told Congressional Quarterly that “much of that sum — up to $100 million — already has been repurposed to help enhance security at the U.N. complex in New York City.” Left unsaid is that under this proposal, the U.S. would be paying 100 percent of the cost of the security upgrades rather than the 22 percent that the U.S. is paying for the current U.N. renovation project to which the security upgrades are related (the “Capital Master Plan”). As for the rest of the credit, State intends to use it to offset future dues. She also said State had briefed Congress “extensively” on the matter last year.

Nothing in Brimmer’s statements should dissuade Congress from considering Representative Ros-Lehtinen’s legislation. However, the statements should lead Congress to ask some tough questions:

1. Why didn’t State ask for reimbursement of these funds when the U.N. informed the U.S. about them? There seems little reason to leave millions of U.S. taxpayer dollars in U.N. coffers for years on end and, needless to say, $179 million would go much farther than $79 million in offsetting America’s dues to the U.N.

2. Who gave the U.N. permission to use the TEF funds for security enhancements? And when did it happen? The funds could not have been “repurposed” without U.S. approval.

3. At what point and with what justification did State deem its consultations with Congress sufficient to make its decision? Congressional staffers characterize the briefings as “cursory” rather than “extensive,” noting that when the decision was made, members had ongoing requests for more information.

4. If the administration wanted to give the U.N. an additional $100 million, why didn’t it make the request through the normal budgetary process? Giving the U.N. permission to use the TEF funds owed to the U.S. for the security enhancements rather than seeking a specific appropriation for that purpose seems to be a deliberate attempt to circumvent congressional authority.

5. Why did State decide to ignore Congress’s expressed intent? Last December, in the FY 2011 Omnibus Appropriation Act – which, to be fair, was not enacted — Congress included two specific references (on pages 1,217 and 1,219) to the TEF money, stating that it “should be used to offset other assessed contributions to the United Nations, subject to the regular notification procedures of the Committees on Appropriations.” Congress clearly wanted the funds reimbursed or otherwise applied toward our U.N. dues — not used for security enhancements at the U.N. building in New York.