Bin Laden is a martyr only to those who loved him while he was alive. Others either feared, disdained him, him or don't much care.

The 1973 War Powers Act does not require consultation with Congress before the fact. It does require the President to advise Congress within 48 hours of committing armed forces to military action. Which Obama did.

As far as anyone can know, had OBL surrendered he'd be alive today. Don't think so? Your privilege.

Because of point one, Noam Chomsky's opinion has little bearing on the case.