<a href="http:&#x2F;&#x2F;freakonomics.com&#x2F;2011&#x2F;09&#x2F;08&#x2F;how-are-sharks-less-dangerous-than-vending-machines-an-exercise-in-conditional-risk&#x2F;" rel="nofollow">http:&#x2F;&#x2F;freakonomics.com&#x2F;2011&#x2F;09&#x2F;08&#x2F;how-are-sharks-less-dange...</a> might be good?<p>You could also remind them that ~90 people die every day from car crashes. Each month more people die from car crashes than have died in terrorist attacks on the US.<p>A similar number of people (to the number that die in car crashes) die from gun violence in the US.<p>Terrorism should realistically be so far down on someone&#x27;s lists of cars that they shouldn&#x27;t be able to justify any ounce of worry on it. Driving more cautiously would be a better use of the anxiety.