Reporters for CNN, The New York Times, Politico, The Los Angeles Times and BuzzFeed were not allowed into the session in the office of press secretary Sean Spicer.
Moscow is naming and shaming major U.S. news organizations for their coverage of Russia.
Watergate journalist Carl Bernstein says the president's attacks on the media are 'more treacherous than Richard Nixon's attacks on the press.'
Russia was allegedly behind a false report of a rape by German soldiers in Lithuania.
A tabloid story was rejected by authorities.
NATO and EU officials are increasingly worried about Russia's ability to spread disinformation via TV and internet.
Fears of foreign or far-right influence in politics are high among Germany's mainstream politicians.
The fake news mindset can be traced back to the campus.
In the Quebec mosque attack, misreporting meant the attack was characterized as "Muslim terrorism" and boosted far-right propaganda.
European nations and NATO are setting up centers to identify "fake news", bolstering cyber defenses and tracking use of social media.
After the "Pizzagate" shooting, we discuss whether the problem of fake news is out of control.
Organization for Security and Cooperation in Europe also fell victim to a cyber hack that used tools attributed to a Russian group.
The Democratic candidate has said that false news stories were putting "lives at risk."
An automated algorithm that detects nudity, violence, or other inappropriate material is being tested on Facebook Live.