So, a person who is a citizen, could have their citizenship revoked for being a terrorist (by some definition) and then be detained indefinitely? Am I reading your, and the parent, comment correctly?
The amendment clarifies the boundaries of habeas corpus.
These boundaries apply only to particular people - namely those people with recognized US citizenship.
First, most of the human rights abused by the United States governments are non-Americans to begin with (let's put aside the penal system and some very sordid history with suppression of domestic civil rights groups for a second).
The amendment clarifies that foreign targets have no right to habeas corpus, a trial, to know even what they are being held for, etc. A very large contingency of innocent people suffer through this, but this isn't the comment to expound on it.
Second, the US can revoke citizenship of those it deems dangerous to national security (people like Snowden among them).
The criticism of the amendment is that the boundaries drawn do not respect the rights of "people" - only the rights of those for which it is convenient to respect (less than 4% of the people on Earth, and no serious dissidents, whistleblowers, etc).
