LONDON — Keir Starmer warned Tuesday that Britain will not tolerate foreign states spreading anti-Jewish hate. Speaking during a Downing Street summit on antisemitism, the British prime minister said police are investigating whether a foreign power is behind a recent spate of anti-Jewish attacks in the U.K. “Our message to Iran, or to any other country that might seek to foment violence, hatred or division in society, is that it will not be tolerated,” Starmer said. The British PM said