Well, I believe the statistics indicate that approximately 3,500 people in the United States die in automobile accidents every month. Let's assume (I'm just making this number up, it's not even an educated guess) that the number of people on the road or the amount that people drive increases by 1%; this would increase the number of deaths on the road by approximately 35 per month. Multiply that by 12 months to get 420 deaths per year, then multiply that by the time since 9/11 to get approximately 1300 additional deaths caused by the inconvenience of the TSA security measures over the past three years. At this rate, the death toll from the "security" measures will exceed the death toll from the 9/11 terrorist attacks by the end of 2008.

According to what I can find, the annual number of deaths from motor vehicle accidents has remained fairly constant at 40,000 to 42,000 since 1991; however, the number of deaths per mile travelled has gone down by approximately 20 percent, from 1.9 per 100 million miles travelled to 1.5 per 100 million miles in 2003. This seems to indicate that the roads are safer but people are driving more miles. With between 40,000 and 42,000 deaths per year, it's likely that an increase of fewer than 1,000 deaths per year would be lost in the noise, at least for the first several years. Maybe after ten years it will be possible to identify a trend but right now I doubt if we could do more than speculate on whether the "security" measures are causing an increase in the annual death rate from motor vehicle accidents.

http://www.tfhrc.gov/pubrds/03may/02.htm

www.findarticles.com/p/articles/ mi_m3724/is_6_66/ai_105408443

and a perhaps politically-motivated opinion piece:

www.writingshop.ws/html/scare_tactics.html

and an article by Brock Yates taking a different point of view:

http://www.techcentralstation.com/051603A.html

states "Keep in mind that while the number of fatalities increased, NHTSA reports that Americans drove 48 billion more miles in 2002 than the year before. " At an annual death rate of 1.51 per 100 million miles driven, this equates to an additional 720 deaths caused by the additional miles driven. Of course, I have no way of knowing how many (if any) of those additional miles can be attributed to the "security" measures and how many resulted from other causes.