I remain optimistic. What we've seen in Europe and the rest of the world is that freedom has a much stronger attraction than radical fundamentalism.

In the fight against terrorism, national agencies keep full control over their police forces, security and intelligence agencies and judicial authorities.

In intelligence work, there are limits to the amount of information one can share. Confidentiality is essential.

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

Terrorists have failed to trigger mass conflict between Muslims and non-Muslims in Europe. We should draw strength from that fact.