If you exchange information internationally, you must strengthen data protection. Those are two sides of the same coin.

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.

The violent radicals do not legitimately represent the overwhelming majority of the world's Muslims.

Terrorists always have the advantage of surprise.

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

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

The central role in the fight against terrorism is with national authorities.