Over eight years after the most devastating terrorist assault in history, this book explores a key strategic question: whether the United States, unilaterally or in concert with its friends and allies, can successfully confront the terrorist challenge in the twenty-first century in spite of escalating levels of fear and formidable odds. Also considers the following questions: How did foreign terrorist organizations exploit American human and material resources to perpetrate attacks domestically and internationally? What lessons can be drawn from the successes and failures of countermeasures directed against foreign-affinity terrorism through local, state, and federal structures? Finally, are there any specific recommendations that can be effective in bringing the "enemy next door" challenge to a manageable level within America?