The revived video feature could foment racism, increase invasive surveillance, and stoke panic, the experts say.

The gilets noirs took their name from the gilets jaunes, or yellow vests movement. They won’t let migrants be blamed for global inequality.

If governments are criminalizing people who “show basic human decency, then I think that shows that we’re doing something very right.”

“They know where we are and they just wait for the Libyans to come tomorrow to pick our corpses,” came the anguished call from a boat in distress.