The social network is flagging publishers it says are under 'editorial control' of governments, as part of efforts to secure its platform against foreign influence campaigns.
The Center for Democracy and Technology argues that Trump's executive order attempting to strip tech companies of a key legal protection was retaliatory and violates the First Amendment.
President Trump's vow to "strongly regulate" such platforms comes a day after Twitter added a fact-check label to a pair of his tweets and renews his argument that those sites silence conservatives.
An art project to shake the lockdown blues has become an online sensation as pent-up Russian speakers from across the globe reenact classic artwork to pass the time amid the pandemic.
As tech firms send workers home, it's creating new challenges over how to handle harmful content, including dangerous health claims. So Facebook, YouTube and Twitter are bringing in the machines.
Facebook says it will give $25 million to help smaller U.S. newsrooms cover the coronavirus. It's pledging $75 million to buy ads in publications in the U.S. and pandemic hot spots in Europe.
U.S. companies are trying to limit disruption from the coronavirus outbreak by curtailing travel and telling some employees to work from home. Several major tech firms are among the latest to act.