“Counterterrorism used to be like counternarcotics. You wait and you wait, and then you get another guy, with the idea that you are working your way eventually to the boss. But time, which was the ally of counterterrorism in the past, is now the enemy.” Christopher Dickey takes a look at Europe’s new effort to arrest terrorists before they terrorize.

“Both involved people known or suspected of close ties to radical Islam. Both groups had acquired battlefield-caliber weapons that gave them enormous kill power.” As officials uncover a plot and sweep up suspected terrorists in Belgium, they also look for connections to the massacre in France. There aren’t that many, which complicates matters even more.

+ Is ISIS about to launch a TV channel?