The terrorist attacks at the airport and a subway station in Brussels on Tuesday came just a few days after the Belgian police captured Salah Abdeslam, the suspected leader of November's Paris attacks, in a recent raid.

It is both astonishing and lamentable that Belgium, a European Union member state known for its generosity toward immigrants and its diverse culture has fallen prey to terror attacks.

It seems something is wrong with the social governance and security situation in the European Union. It is noteworthy that Islamic extremism, one of the biggest security concerns for the EU, has actually developed from within.