Federal agencies are still offering conflicting explanations for last week's unprecedented shutdown of El Paso's airspace, even as a separate NOTAM remains active over nearby Santa Teresa, New Mexico, extending the mystery surrounding the incident and prompting Republican lawmakers to call for a formal investigation.

The Internal Revenue Service (IRS) improperly disclosed the confidential taxpayer information of thousands of individuals to the Department of Homeland Security (DHS), according to a court filing reviewed by Newsweek.