Imagine that you are overseas. Imagine that someone acting on behalf of the country's government where you are apprehends you. Imagine that they put you on a ship at sea. Imagine that they inerrogate you there for two months.
Imagine you are innocent of anything that might have justified your apprehension.
With the US doing the first paragraph, and not worrying about many legal protections for the second, how would you argue - and to whom - that this should not happen to you?
Think about it. It may be the scariest scenario that you could imagine, and the one that is increasingly a viable risk.
If we do not apply our innocence presumption and lawyer guaranteed rules to anyone we apprehend, we do far more than invite other countries to do the same with US citizens.
It's a cause not only of immense shame but huge danger to millions of Americans.