Sir Keir Starmer has been told he must tackle the “pandemic” of antisemitic attacks in Britain after two Jewish men were brutally stabbed by a knifeman in a terrorist attack in London. Disturbing CCTV footage captured the moment a man wearing a white t-shirt and dark jacket launched an unprovoked attack on an elderly man wearing a kippah, a Jewish skullcap, near a bus stop in Golders Green , north London. The alleged assailant was seen walking up the road before he suddenly drew a blade and lunged at the man at around 11.15am on Wednesday, before walking away and leaving his victim bleeding from the neck, witnesses said. Further footage shows the knifeman running to catch up with another Jewish man, who shouts in terror and runs away. He allegedly then tried to stab members of the public who tried to stop him before turning on police officers, who tasered him before he was arrested on suspicion of attempted murder.…