In the final hours before the Christmas holiday weekend, U.S. President Barack Obama on Friday quietly signed the 2017 National Defense Authorization Act (NDAA) into law—and buried within the $619 billion military budget (pdf) is a controversial provision that establishes a national anti-propaganda center that critics warn could be dangerous for press freedoms.

The Countering Disinformation and Propaganda Act, introduced by Republican Sen. Rob Portman of Ohio, establishes the Global Engagement Center under the State Department which coordinates efforts to “recognize, understand, expose, and counter foreign state and non-state propaganda and disinformation efforts aimed at undermining United Sates national security interests.”

Further, the law authorizes grants to non-governmental agencies to help “collect and store examples in print, online, and social media, disinformation, misinformation, and propaganda” directed at the U.S. and its allies, as well as “counter efforts by foreign entities to use disinformation, misinformation, and propaganda to influence the policies and social and political stability” of the U.S. and allied nations.

The head of the center will be appointed by the president, which likely means the first director will be chosen by President-elect Donald Trump.

The new law comes weeks before the New York billionaire assumes the presidency, amid national outrage over the spread of fake news and what many say is foreign interference in the election, both which are accused of enabling Trump’s victory.