One can assume that in the first few days or weeks of a disaster the population may still be civil and would need to get gas out of vehicles without punching holes in the tanks. You have to also consider that many disasters can be short term such as fire or power outages. GasTapper is a great tool to be confident that you can keep your equipment running during these times.
Richard also mentioned our sister product, Cooler Shock, a high energy ice pack that can keep food fresh for days when your refrigerator isn't functioning.
To learn more about Cooler Shock please go to CoolerShock.com.
You can buy Richard's books on Amazon.The S.W.A.T article will be posted on our website in a few months.