When the E.U. and the U.S. agree, other countries follow.

Proliferation of nuclear weapons to terrorist organisations is far more dangerous than proliferation of nuclear weapons to states, even states like North Korea.

The E.U. has moved to combat global terrorism by instituting common European arrest and evidence warrants and creating a joint situation center to pool and analyze intelligence.

The U.S. - E.U. economic relationship dwarfs America's economic ties with China.

A terrorist nuclear detonation in a western city would destroy all economic confidence.

Of course the EU and member states must work to ensure that people moving from one country to another understand their obligations and their rights in areas like health, road safety and further education.

Ireland has a role to play in making the E.U. united and strong.