Here's the thing - and Finn's largely made this same point in one of the other two threads covering this topic, so I'll quote him.
Finn elsewhere wrote:I think both sides of the political divide would agree on the concept of the rule of law and how that separates us from a mob...
...The difficult point from an international perspective is how the US relates itself to International Law. It has been happy to invoke it when needed to propel a particular stance or course of action, but has played the "our Constitution does not require this of us" card when the convenience factor has been less to its liking, claiming moral and legal high ground both ways. The Treaties and Conventions that the US has agreed to should over-ride the US constitution because if they do not then those Treaties and Conventions should never be signed, when it's clear that obligations made under those signatures are invalid. Such duplicitousness cannot be simply missed by the world’s greatest exponents of contract law surely?
As I've said before, I'm next to ignorant on US constitutional matters, so I have no clue if the POTUS's sanctioning of the killing of OBL was illegal in purely US-centric terms - I'll let Cail and Zarathustra battle that one out. All I can say on that is, if Congress agreeing to pass Z's much quoted Public Law 107-40 does over-ride the US Constitution, then allowing one man to do whatever the hell he likes in the name of whatever he chooses to define as the "war on terror" - and without any need to seek a further democratic mandate - looks insane to me.
However, let's play devil's advocate here for a second. Let's assume that Obama's sanctioning of the OBL operation was not illegal in US terms, and let's assume that international illegality doesn't matter one blind bit to the US - because the operation was absolutely cast iron illegal when measured against the standard of international law. Okay fine, but...
The logical extrapolation of this is that it's perfectly justified for any body or group or nation to do whatever it wants, provided that it passes the test of rectitude
solely against its own created standards. Cail's already given a telling hypothetical example of it then presumably being fully justified for Mossad to carry out an unannounced raid on Mobile, Alabama, provided that the Knesset had "determined" that Mobile residents were in some way offering aid to those involved in terrorism against Israel. Presumably then, we Brits could have sent the SAS into Boston back in the 80s and executed any or all of the US citizens involved in organising or donating funds to the IRA, and by the very standards that the US is claiming for itself, that would have been fine too?
Similarly and on the same basis, Al-Qa'eda's various terrorist actions would also not be illegal, because they apparently only need be measured against its own doubtless twisted standards or rules of governance, incorporation or whatever. You can't have it both ways - you can't dismiss international law and maintain the supremacy of your domestic mandate only when it suits. To do so actually sanctions the legitimacy of the actions of the very terrorists you're looking to defeat, unless you're to champion a very blatant double standard.
Regarding the question "can one legitimately declare war on an ideology, behaviour or individual?" If your answer to this is yes, then you have to allow the reverse - followers of an ideology, practicers of a behaviour or indeed an individual can by the very standard that you've claimed, declare war on you.
On that basis, especially given that Al-Qa'eda
declared a fatwa against the US, Israel and the West as a whole back in February 1998, that fatwa by your own standard must also be seen as a legitimate war. War as we know is governed by protocols that offer some legitimacy to acts that would not be tolerated in peacetime. This then would de facto mean that 9/11 was no more than a lamentable act of war, no different in nature or legitimacy to the bombings of Dresden or Hiroshima or any other carnage done to civilians in the name of war. Is that honestly what you want to maintain? You do realise that the logical conclusion of this argument only goes to legitimize the actions of Al-Qa'eda? In my book, it's not a war and Al-Qa'eda aren't soldiers, they're terrorists.
Quoting a terse but well-put response from Finn from elsewhere again...
Finn elsewhere wrote:.....and its that type of rhetoric, that appears to have little grasp of law and consequently lawlessness, that has turned your country from the symbol of hope and freedom and peace into a lawless cowboy with the same status as other rogue nations such as North Korea. It has thrown out law enacted by the forsesight and protected by the bravery of those who have died defending it to be replaced by the tenets of Sharia Law whilst mindless throngs cheer "yah, yah the witch is dead".
The rule of law is being eroded in a manner just as badly as Bush did. If you sit down, sober up and think through the consequences beyond cracking another six pack, you might start to see that the behaviour of your President is not about restraint from grovelling before the UN but restraint from grovelling before you, the people who elected him to maintain the rule of law.
Outside the goldfish bowl of the US, for all that the killing of OBL was undoubtedly morally just (although internationally illegal), sadly this whole matter has made the US executive look it operates by a massively hypocritical "do as I say, not do as I do" Wild West mentality.