SO FAR, the terrorist attacks in Brussels on Tuesday have caused 34 deaths and injured over 280 people. Together with the attacks in Paris on Nov 13, 2015, it shows terrorism poses a grave challenge to the European Union, which might alter its domestic and foreign policy, says an editorial by thepaper.cn:

The Brussels attacks happened just kilometers away from the EU parliament. The message is clear: The whole European continent can be under attack and the European Union faces severe security challenges. That might in turn prompt the EU to adjust its policies to better cope with them.

The European integration process might be revaluated. European governments are strengthening border controls after the attacks.