WASHINGTON (AP) — The White House’s anger about leaks is growing, and the Trump administration is stepping up efforts to crack down on them.

The attorney general and the national intelligence director are set Friday to discuss what the Justice Department calls “leaks of classified material threatening national security.”

A presidential adviser is raising the possibility of lie detector tests for the small number of people in the West Wing and elsewhere with access to transcripts of President Donald Trump’s phone calls. The Washington Post has published transcripts of his conversations with the leaders of Mexico and Australia.

Trump counselor Kellyanne Conway tells “Fox & Friends” that “it’s easier to figure out who’s leaking than the leakers may realize.”