> I don't see how the 5th amendment protects you against torture. You can choose to waive your constitutional right to not incriminate yourself, so surely you can also be tortured into waiving the same right?

The short response here is: How often do you see that happening in the US?

But in any case, note that I'm explaining what it was intended to do and what its meanings and implications are. Whether it is successful in achieving its goal is beside the point for this conversation.