CRS Reports & Analysis Legal Sidebar – The Law and Leaks to the Press, 02/22/2017: “President Trump has expressed concern over leaks to the press from within the Executive Branch. Earlier administrations, particularly the Obama Administration, acted upon similar concerns to prosecute officials, employees, and contractors who leaked classified information or certain military information to the press. Officers and employees may also be subject to disciplinary action for leaks regardless of the nature of the information. However, they may claim some relief from disciplinary action under the whistleblower protection provisions. Few, if any, journalists have been prosecuted to date, but they may end up in jail for refusing to divulge their sources to a grand jury investigating a leak…”

• See also Washington Post – President Trump’s war on leaks, explained – an interview with “Steven Aftergood, the head of the Project on Government Secrecy at the Federation of American Scientists, and David Pozen, a professor at Columbia Law School who has written extensively about leaks, to learn more.”