Comment Re:Car analogy (Score 1) 558
You're attempting to split hairs, but you're not doing a good job.
Definitions for tank:
merriam-webster.com: an enclosed heavily armed and armored combat vehicle that moves on tracks
dictionary.reference.com: an armored, self-propelled combat vehicle, armed with cannon and machine guns and moving on a caterpillar tread.
thefreedictionary.com: An enclosed, heavily armored combat vehicle that is armed with cannon and machine guns and moves on continuous tracks.
The weaponry is part of the definition in all cases, otherwise it's just an armored vehicle. But all that still dodges the question of why the machine gun and cannon (and nuclear weapons) are not "arms" per the 2nd amendment. This is especially thorny for those who believe the main purpose of the 2nd is for the people to be a credible threat to the government.