Who should you fear?
Who should you fear the most? Who will probably kill you in the end? Is it a Muslim terrorist? An “ethnic” thug you see on the street? A meth addict burglarizing your home?
Someone hundreds of times more dangerous lurks uncomfortably close to you and your loved ones, someone who works every day to bring about your early death.
Who is this homicidal person? The answer is you. (via Schneier on Security)