I prefer the collaboration method in decision making, because it ensures that all opinions and ideologies are included in the final decision. When using this method, no ones left out and everyone gets equal opportunities in participation. The outcomes of collaboration in decision making tend to be more effective and wholesome. Unilateral decision making is the very opposite of that; its one-sided and it doesn't involve any consultation.
Franklin Roosevelt delivered the "Day of Infamy" speech after the attack on Pearl Harbor. He delivered the speech to tell the people of the USA that he will not allow this act to go unpunished.