Board Thread:Speculation House/@comment-25316824-20160917214234/@comment-28288412-20160917214947

Perhaps such attacks were so scarce beyond the actions of the WF, whose attire is typically easy to spot and actions not so large scale as to suicidally attack a stadium full of people, that such actions were thought to be unnecessary.

Remember, this is a world where three of the four main powers don't even have an army due to the peace. They probably thought the existing measures (Atlas and huntsmen security) was sufficient.