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So we have another Circus court of banan-appeals?
The founders letters demonstrate that the purpose for the second amendment was to assure that the people remain militarily stronger than their government.
This decision cannot stand, even back in the 1930s the SCOTUS saw that military grade weapons were what was intended to be protected.
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That's right and if SCOTUS were to uphold this decision there would be two opposing SCOTUS decisions. One claiming that only military weapons are covered by the 2nd Amendment and the other saying that no military weapons are covered by the 2nd Amendment.
In that case all laws regarding weapons of any kind would be null and void. The law would be an outlaw, a violation of the principle purpose of the law. Time to hoist the black flag and draw cutlasses.