I found the following quote in a story about how the CIA fights terrorism (link from Kausfiles):

“In successful cases, we can apprehend someone and move that person to another country where he can be arrested and interrogated,” an official said.

One major benefit of putting possible terrorists in the hands of foreign services, according to intelligence sources, is that most countries do not have the same legal rights and procedures as are practiced in the United States. Many foreign countries fighting terrorism use interrogation methods that include torture and threats to family members.

That’s right, in order to circumvent that pesky Constitution the CIA sends suspects to other countries where human rights are not respected.