From the article, "In reality, Americans are safer and more secure today than at any point in human history."

Prove it. Through the 1950's there were no Russian missiles aimed at us. That alone provides a measure of danger. How can anyone prove that no former Soviet backpack nukes found their way into the US? I don't know that they have but did see the World Towers crash. I wouldn't have guessed that would happen either. Perhaps evolution needs both pollyanna types [['forward' lemmings) and worriers for different reasons.