[BeetleB]

> And kidnapping is kidnapping. According to this logic, imprisonment is kidnapping,

MW definition:

"to seize and detain or carry away by unlawful force or fraud and often with a demand for ransom"

So no: Lawful imprisonment is not kidnapping.

[programmarchy]

That is exactly my point. The law is the differentiator: the 13th amendment sets apart forced labor for punishment of a crime.