That threat video ostensibly posted by ISIS/ISIL last week which made direct mention of Facebook and its founder Mark Zuckerberg — as well as Twitter CEO Jack Dorsey — doesn't concern Zuck too much. As he said in a wide-ranging interview with German publication Die Welt am Sonntag (as translated via CNN Money), "There have been worse threats."

But, he says, he is "very concerned, but not because of the video." He goes on to say, "I think the bigger issue is that what Facebook stands for in the world is giving people a voice and spreading ideas and rationalism," and he adds, "Our North Star is that we want to give the most voice possible to the most people."

He clarifies again that Facebook has limits to free speech, and that the company "work[s] closely with governments and local organizations to be certain we are applying [Community Standards] appropriately for local conditions and to identify and remove hateful or threatening content."

In the threat video, a slide in the video addressed the social network's practice of shutting down accounts that support ISIS, saying, "You announce daily that you suspended many of our accounts. And to you we say: Is that all you can do?"

Previously: ISIS Threatens Mark Zuckerberg, Jack Dorsey