Super7,
If the criteria is saving ONE life, why not close the parks altogether?
Even based on Rep. Markey's not-terribly-well-substantiated statistics (http://www.house.gov/markey/safety.pdf, assuming:
.92 fatalities/100 million automobile miles,
.61 fatalities/100 million fixed-site ride miles,
.01 fatalities/100 million scheduled airline miles, and
2,880 feet of track on the average ride), then on my recent Cedar Point trip, the expected fatality rate should be 119.6 for the automobile portion (130 miles for home to Nashville airport, Cleveland airport to Cedar Point, and returns x 0.92), 10 for the air portion (1,000 miles for Nashville to Cleveland and return x 0.01), and 10.9 for coaster riding (20 rides at 2,880 feet/ride, 5,280 feet/mile x 0.61), meaning that I'm 11.9 times MORE LIKELY to die going to/from the park than AT the park.
Therefore, I propose that we should close all amusement parks, because they make people want to travel, and if we save one life, then it's worth the rest of us sitting at home watching the tube and scarfing down cholesterol-laden food.
Um, wait, maybe we should check the death rate per million pizzas before you take my advice! ;-)
The point is, I implicitly accept the risk by my participation in rides at an amusement park (as I do taking the interstate every morning to work, for that matter). The fatality/accident rate is low enough that I consider it an acceptable risk, and while the loss of any life is tragic and heartbreaking, the fear of one life being lost in an industry with a solid safety record is not enough for me to scream for the government to regulate our lives and waste tax dollars even more than they already do.