USA has the highest incarceration rate. Why?

[Kasz216]

Mr Khan said:

DeathToIran24 said:
Too many blacks and latinos.

Then why do many of the countries that are all blacks or all latinos have lower rates?

EDIT: In second thought, though funny and i clearly states I was joking and disagree with it, i'm gonna self edit this out.

Seriously though... as people said, War on drugs, higher sentences and just general culture.