The Transportation Security Administration is renewing Homeland Security Secretary Kristi Noem’s push to end a collective bargaining agreement with airport screening officers — the second such attempt this year, coming just a month after the longest government shutdown on record.

The agency said the move relies on a September memo from Noem — issued months after a federal judge blocked her earlier directive — that says TSA screeners “have a primary function of national security” and therefore should not engage in collective bargaining or be represented by a union.

The American Federation of Government Employees swiftly vowed to fight the decision, calling it illegal and a violation of the preliminary injunction issued in June that halted Noem’s first attempt to terminate the contract covering 47,000 workers.

The agency said it plans to rescind the current seven-year contract in January and replace it with a new “security-focused framework.” The agreement, reached last May, was supposed to expire in 2031.

Adam Stahl, acting TSA deputy administrator, said in a statement that airport screeners “need to be focused on their mission of keeping travelers safe.”

Puerto Rico tax incentives under review

Puerto Rico tax incentives that have lured thousands of rich Americans to the U.S. territory for over a decade are under scrutiny after federal legislators released a new report by the U.S. Government Accountability Office.

The report found that the island’s exemptions could amount to hundreds of millions of dollars a year, and it urged the International Revenue Service to improve its oversight, warning that some recipients “may not be meeting their federal tax obligations.”