Al-Qa'ida does not follow a traditional command structure, wear uniforms, carry its arms openly, or mass its troops at the borders of the nations it attacks. Nonetheless, it possesses the demonstrated capability to strike with little notice and cause significant civilian or military casualties.
John O. BrennanThe preservation of our national security and the laws that define us as the United States of America demand that we understand the intersection of the two - indeed, how they reinforce one another.
John O. BrennanThe risk of just one terrorist with just one nuclear weapon is a risk we simply cannot afford to take.
John O. Brennan