Following 9/11, Americans were swept up in a near hysteria-level fear of terrorists, especially of Islamic extremists working domestically. The government and media reports stoked fears that people living in the US have the desire and means to wreak extreme havoc and destruction. Early reports estimated slightly more than 300 al Qaeda operatives living in the United States. It wasn't long before this number became 2,000 or 5,000 domestic terrorists. As these estimates snowballed, so did spending on federal counterterrorism organizations and measures, spending which now totals over a trillion dollars. The federal government launched more covert operations in the name of fighting terrorist adversaries than they did in the entirety of the forty-five year Cold War. For each apprehension of a credible terrorist suspect, the US government created or re-organized two counterterrorism organizations. The scale of these efforts has been enormous, yet somehow they have not been proven to make Americans feels safe from what they perceive to be a massive terrorist threat. But how well-founded is this fear Is the threat of terrorism in the United States as vast as it seems and are counterterrorism efforts effective and appropriately-scaled It has not, statistically speaking, been efficient or successful.