By your way of thinking, those 8 German submarine (sabateur) spys who were captured on US soil during WWII should have been given bail, Mirandized, and let go on their merry way so as not to violate their rights.
Yes I know Miranda rights weren't initiated until the 60s, but what the hey, even Nazi's who are planning sabatage deserve their Constitutional rights.
/sarc
Its easy to stand by principles when there is no risk involved. Terrorist should not be allowed to force us in giving up our most sacred principles. Its an opportunity show the world the value we put on justice and freedom, and the unparrallelled courage to stand by those values under any threat.