We remain vulnerable.There is no such thing as 100 percent security against terrorism.

Police forces collect information to be used in a public court to get people convicted. Security services gather information that does not necessarily lead to people being prosecuted and in many cases needs to remain confidential.

If information ends up in the wrong hands, the lives of people very often are immediately at risk.

Europe has a long and tragic history of mostly domestic terrorism.

The idea is to have global standards. There is so much travel that if you just had a regional standard, it would probably ultimately have to be changed.

The European Borders Agency in Warsaw has been created to help border forces in Europe cooperate more.

You can't get closer to the heart of national sovereignty than national security and intelligence services.