After a foreign invasion, there has to be a sort of feeling of musical inadequacy in the country.
Washington is the only city in the world where you can go to a black-tie dinner and there at the foot of the table is a television set up to catch a press conference.
You have to have as many defences in place as you possibly can. But even then of course - and it's important to stress this - you cannot guarantee being able to prevent every attack or every kind of attack.

