A Facebook test of pop-up boxes asking people whether they think friends are becoming extremists raised concerns on slotxo ใหม่ล่าสุด among US conservatives who felt their voices might be stifled.
Facebook spokesman Andy Stone said in a Twitter exchange that the alerts sprang from an initiative at the social network to combat violent extremism and dangerous organisations.
"Redirect Initiative" features are intended to route people using hate- or violence-related search terms toward resources, education or outreach groups aimed at more harmonious outcomes, according to Facebook.
For example, Facebook said that searches related to white supremacy in the United States get directed to a Life After Hate group that provides crisis intervention.
Images of the alerts shared on Twitter showed messages asking whether users were worried someone they knew was becoming an extremist or if they had been exposed to extremist content.
People could opt to click on a link to "get support" or simply close the pop-up box.
Virginia state politician Nicholas Freitas, a Republican, was among those who shared an image of the Facebook alert on Twitter.
"I have a real concern that some leftist technocrats are creating an Orwellian environment where people are being arbitrarily silenced or banned for saying something the 'thought police' doesn't like," Freitas said in the post.