Pakistan, July 15 -- Dangerous. Brazen. Unprecedented. Uncharted territory.

Reaction in the media world has been swift and severe to the issue of subpoenas to five New York Times journalists who reported on security questions involving the new, Qatari-gifted Air Force One - a legal maneuver seen as a troubling escalation of the Trump administration's campaign to control and intimidate independent media outlets.

"The subpoenas are an extraordinary escalation in President Trump's efforts to threaten and intimidate independent news organizations, and have a chilling effect on the work of journalists across the country," said Jodie Ginsberg of the Committee to Protect Journalists.

Media advocates and analysts expressed dismay at the tactic...