maybe.........
Corny I know, but "one man's guerilla is another man's freedom fighter".
Most people here would have supported the French resistance during WWII (yes, there was some) and who would have argued that hijacking a german airliner to escape capture by the Gestapo would be wrong?
Moral minefield - and, I'm afraid, each case must be judged on it's individual merits.
By and large, I am adamant that it is wrong, but there are cases when I have SOME sympathy with the hijackers (as with the Afghan 727 case).
I doubt this will be popular, but there you are.