The UK's terror threat level has been raised from "substantial" to "severe", which means an attack is highly likely, after the antisemitic stabbings in north-west London.The Joint Terrorism Analysis Centre (JTAC), an intelligence body linked to the UK's security service that assesses the country's terrorist threats, said the upgrade on Thursday was not solely based on the terror attack in Golders Green a day earlier.advertisementRead Full StoryIt said the threat had been rising for some time, driven by a rise in broader Islamist and extreme right-wing terrorist threats from individuals and small groups based in the UK."Today, the national threat...