Iraq was an over reaction, but the Neville Chamberlain when such acts occur isn't the answer.
The UK government needs to look in the mirror and see how it's failed its indigenous and integrated populations by allowing practically uncontrolled and funded (via welfare system and NHS) immigration from countries that are predominantly muslim, primitive and of no benefit to British society.
The fact that it must be careful how it treads because the muslim youth see islam above being "British" and might get angry at government responses from islamism and islamic terror is a joke.
Most of the rhetoric is correct tho. Terrorism is a delight to a big brother style government like the UK. Most watched nation on earth, highly taxed - and no benefits for the good people who input into the system.