Americas biased Foreign Policy that runs contrary to International law and its own policies invite such attacks. America could solve many crisis overseas simply by enforcing International Law and therefore gaining full International support. Instead it lets its strings get pulled by treasonous US statesmen and stateswomen who place the interests of other countries ahead of their own.
Munich council upholds ban on Holocaust 'stumbling stone' memorials (AP)
from the article: LIVE BLOG: Boston Marathon bombing suspect is in custody, alive