I am just going to throw this interesting interactive info-graphic in:
http://www.npr.org/sections/money/20...in-every-state
Now, if many secretaries were replaced with Voicemail, Email, and the general ability to type your own stuff... I Imagine there are several trucking industries drooling over self driving trucks... Assuming a semi truck gets about 6 miles per gallon and is driven at 60 mph then it is using 10 gallons per hour or about $40 of fuel. Now if a truck driver makes about $20/hour.. then you are paying $60/hr shipping, but with a computer controlled driver, you could erduce the cost to your driving system which might be $20K, but would be good for 2 years would reduce it to $5/hr.... If refresh only costs $10K then you would reduce down to $2.5/hr Hmmmm. From a cost perspective, that would require getting truck from 6 mpg to 10-12 mpg to get an equivalent savings... Something tells me the most popular job for many states has an expiration date in the not too distant future.