Anecdotal, but I grew up in the US and I learned this in middle school as a gifted student. Others have mentioned it depends on the state/curriculum. I imagine in other countries they also divide their students between standard/honors/gifted-type tiers; they certainly do in the Netherlands, which is where I did my graduate studies.

It wouldn’t work (I should have added /s); it would introduce new problems, not to mention the issue of radiation poisoning.

Sharpies, though, solve all problems.

Maybe they can nuke the floods away.

Not really, especially if he was headed to/from DC. Some of the worst drivers in the nation regularly frequent 495.