If we adopt the stance that American citizens can be detained indefinitely by the government on no more than the government's say-so, what precedent will be in place for future administrations with whom the people on this forum strongly disagree?
If he's done something wrong, charge him in a court of law and let the process provided for in the Constitution take its course.
Last time I checked, this is still a nation of laws. At least I thought that's what we're all striving for.
However, I do think that there is less basis for holding Padilla indefinitely. If he is truly an enemy combatant, he should be charged with treason.
From Article III of the Constitution:
Section 3. Treason against the United States, shall consist only in levying war against them, or in adhering to their enemies, giving them aid and comfort. No person shall be convicted of treason unless on the testimony of two witnesses to the same overt act, or on confession in open court.
It is a difficult charge to prove, but appropriate in this case.