“Now, we don’t know now if it was terrorism or a single crazy or a domestic issue or a foreign issue,” he said. “But there is no question that this happened because there is someone who feels completely excluded. Completely at war with innocents. At war with a society. And our approach has to be, where do those tensions come from?

“Yes, there’s a need for security and response,” Trudeau added. “But we also need to make sure that as we go forward, that we don’t emphasize a culture of fear and mistrust. Because that ends up marginalizing even further those who already are feeling like they are enemies of society.”

http://nationalpost.com/news/politics/trudeaus-response-to-boston-marathon-bombing-was-unacceptable-made-excuses-for-terrorists-harper-says