To islamist terrorism, appears to have failed to detonate fully, but 30 people ended up on casualties. Three of them are still being treated at chelsea and westminster hospital, and last night the uk moved to its highest terrorism threat level critical and soldiers were deployed to do some of the work of armed police officers. We have authorised operation temperer, which is the initial deployment of a number of troops. They will be deployed to key sites in the uk to free up armed police. And so you will see more armed police on the streets, up to between 501,000 depending on how the police wish to deploy them. At houston this morning the changing threat level was immediately obvious up to between 500 and 1000. There are seven premier League Football matches today and there will be more security at those and other big events. We rehearsed things a lot. We make sure we do it well, so the public will see an awful lot more police officers. They should expect to see more on the underground