Second, I find it difficult to believe that there are countries where driving slightly faster than a number printed on a road sign can result in prison time.
If I've made an error, it's because I drew a reasonable, albeit incorrect, conclusion; it isn't because I'm an ignorant American who doesn't consider the existence of other countries. If you had a correction, you should have posted it rather than a snide comment along these lines.
Some countries take an extreme stance on driving-related offenses. A few countries are actually so worried about speeding that they have banned the sale of racing-related video-games.
Hell, in Virginia a few years back they implemented insanely high fines for all sorts of minor moving violations. Some of the offenses cost several thousand dollars.