The terror threat level has been increased to severe as Britain's top police officer says that the UK faces a pandemic of antisemitism and the government's adviser on terrorism says we face a national emergency. This crisis on the streets of Britain is just one of many crises which Sir Keir Starmer, the prime minister, has been facing in recent weeks and months. The crisis triggered by the war in Iran threatens to tear up his plans and hopes for the economy. The ongoing war in Ukraine continues