US President Joe Biden said on Friday that Elon Musk had purchased a social media platform, Twitter, that spews lies across the world.
Twitter laid off half its workforce on Friday but said cuts were smaller in the team responsible for preventing the spread of misinformation, as advertisers pulled spending amid concerns about content moderation.
Biden said at a fundraiser: "And now what are we all worried about: Elon Musk goes out and buys an outfit that sends - that spews lies all across the world... There are no editors anymore in America. There are no editors. How do we expect kids to be able to understand what is at stake?"
White House Press Secretary Karine Jean-Pierre told reporters earlier that Biden had been clear about the need to reduce hate speech and misinformation.
"That belief extends to Twitter, it extends to Facebook and any other social media platforms where users can spread misinformation," she said.
Musk has promised to restore free speech while preventing Twitter from descending into a "hellscape." But major advertisers have expressed apprehension about his takeover for months.
Israeli raids targeting several areas across Lebanon on Tuesday killed 31 people and wounded 40 others, Lebanon's health ministry said, in one of the heaviest days of bombing in weeks.
Israel said on Wednesday it had killed Hamas's newly appointed armed wing chief in Gaza, days after it killed his predecessor, while intensifying military pressure in Gaza and expanding operations in Lebanon.
Syria's transitional leadership has located remnants of former President Bashar al-Assad's clandestine chemical weapons programme, including raw materials and munitions similar to those used to carry out deadly gas attacks during the country's long-running civil war.
A chemical tank imploded and ruptured at a Nippon Dynawave Packaging facility in the US state of Washington on Tuesday, resulting in one death and nine injuries, while nine others remained unaccounted for as of Tuesday night, authorities said.