
After last night’s horrific attack in Manchester, Theresa May has announced that the terrorist threat level has been increased from “severe” to “critical” – meaning a further attack may be imminent. The Prime Minister, following the advice of the independent Joint Terrorism Analysis Centre, said in a statement from 10 Downing Street: “The work undertaken throughout the day has revealed that it is a possibility we cannot ignore that there is a wider group of individuals linked to this attack.”
The new threat level, the highest available and last imposed in 2007, means that up to 5,000 soldiers will be deployed on the streets to replace armed police, guarding sensitive points such as parliament and railway stations. The intelligence services are likely to have been troubled by the relative sophistication of the Manchester Arena attack, a nail bomb, which murdered 22 people and injured 59 others.