If you Owe the IRS Back Taxes, you may be detained at the Border when Entering the USA

It is believed that the IRS has established procedures to facilitate tax collection from taxpayers who live outside the United States. If such a  taxpayer has an unpaid tax liability and is subject to a resulting Notice of Federal Tax Lien, the IRS is probably submitting  identifying taxpayer information to the Treasury Enforcement Communications System (TECS), a database maintained by the Department of Homeland Security (DHS). The database allows the DHS to identify taxpayers with unpaid tax assessments who are traveling to the United States for business, employment, or personal reasons . Therefore, it appears  taxpayers traveling to the United States with unpaid tax assessments increasingly are being detained at the border by the DHS.