Israeli President Isaac Herzog will meet Elon Musk on Monday and emphasise “the need to act to combat rising anti-Semitism online,” the politician’s office said Sunday. Musk, owner of X, formerly known as Twitter, has come under fire over what critics say is a proliferation of hate speech on the social media site since his takeover. He has also been accused by the White House of “abhorrent promotion” of anti-Semitism after endorsing a conspiracy theory seen as accusing Jews of trying to weaken white majorities. Herzog’s office said the meeting would be joined by “representatives of families of hostages held...