Speed limits aren't the same as speed limits.

Let me clarify:

UK speed limits aren't the same thing as US speed limits. They have different reasons for existence. In the UK speeds are set at a reasonable level for the condition of the road. In the US, somebody counts their fingers and toes until they can't go any higher and puts the result (or something like it) on a sign. Either that or police departments say "We're not meeting our speed ticket quota" and have the limit lowered. Often new lower limits are posted after a road is *improved*. And that's considering US speed limits were often originally set for unmetalled farm tracks. So we have wide two-way roads with 50 mph speed limits where a narrower road would be 60 in the UK. We have urban dual carriageways with a 35 mph limit where the UK would see 50 mph. We have rural divided highways with 50 mph limits where the UK limit would be the default 70 mph. Big difference.

So absolutely, speeding in the US is normal driving, and per TFS, *not* speeding is the more dangerous habit.

That doesn't transfer to the UK, where speeding is antisocial arseclown behaviour.