A four-page memo circulating in Congress that reveals alleged United States government surveillance abuses is being described by lawmakers as “shocking,” “troubling” and “alarming,” with one congressman likening the details to KGB activity in Russia.

Speaking with Fox News, the lawmakers said they could not yet discuss the contents of the memo they reviewed on Thursday after it was released to members by the House Intelligence Committee. But they say the memo should be immediately made public.

“It is so alarming the American people have to see this,” Ohio Rep. Jim Jordan said.