Can someone tell me where in the 2nd amendment it says you can carry machine guns?

[Nanny]

"Trust me". Dear Complete Stranger, why should I trust you with a gun?

Agreed, I already told you my family history of mental illness, you'd be right to question me. That is why "Legal at time of buy" isn't enough, because right now, I have no criminal record. 

I trust you from what I have read because you don't flip out like others here when I object to the way things are. And you keep them locked up, and I'd bet you don't brag to everyone in your face to face life about what you own. 

If anyone's argument is "RIGHTS" and "Just because", they completely miss the point because nobody is trying to or should try to ban every single firearm.

Brian, I'm surprised by your comment. 

There's a Philip K. Dick story called Minority Report (made into a bad movie) that posits a society where "precrime" is a punishable offense. A means is devised to determine probability of any individual committing a crime. The surveillance state takes these probabilities and acts on them to arrest and punish people for potentially committing crimes. It's a dystopian story about a police state.

I'm not suggesting that you meant this, but when you say that you have a family history of mental illness, and suggest that should disqualify you from exercising your rights, you're making a very bold statement. It presumes that we are not free to make our own choices and to act in accordance with those choices. You're saying that because you could snap at some point that you should forfeit a right guaranteed you by the Constitution. 

This isn't about just 2A, then. If your argument is real, you could make the same statements about anything. Your very lot in life could be decided based on heritable traits and tendencies. That sounds like genetic stratification, or eugenics. That is terrifying as history proves. 

I appreciate that you enjoy debate and I've been impressed with your statements in other threads. I'm hoping you'll reconsider this aspect of your approach.

Edit -

If your self-assessment is accurate, then it is good of you to acknowledge that the responsibility of gun ownership is not for you. Just because you've decided that you are unsuitable to own guns doesn't mean that no one is. With the millions of guns in this country - the vast majority of which will never do harm to any person (statistics prove this) - it truly is the exception when some slob does something horrible with a gun to themselves or others. There are 300+ million people in the USA. A fraction of those own guns. A very small fraction of those use guns to harm others other than in self-defense. Applying your individual situation to the vast majority of law-abiding citizens is wrong.

It's like climate-change deniers who confuse daily weather with long term climate. Yes, the weather changes day-to-day. The long view describes the climate. Climate deniers will say, "global warming, eh? how come I got a foot of snow TODAY?"

False dichotomy again. Incorrect understanding of terms.