You sir, deserve far more than just 5 karma points for your post.
Just because you can get elected, does not mean you are smart. At all.
A reasonable response. Training the average person to hit a man sized target usually only takes an hour or so of instruction and usually just a few rounds on the range. Most of the women I train can hit a man sized target reliably at 25 feet in just a magazine or 2. Martial arts also depends heavily on the person attacking you. If that person is 6'3" and 250lbs and has any kind of defensive training, very few people would be able to stop them let alone a 120lb female that stands 5'4" (the last woman I trained).
As for killing muggers and robbers, usually the presence of a firearm will persuade them to leave very quickly. If it doesn't and they become aggressive, then they had no plans of leaving you alive to begin with. So the presence of a firearm in that situation has nothing but a positive impact for the victim. (unless they do something asinine)
After all, you can get USD12 for a bitcoin at a number of places today.
werent they worth ~20-25$ USD not even 3-4 months ago?
At some time the bitcoin economy will grow to the point that anyone with bitcoins can use them to purchase products, and anyone who needs them can get paid for services with them, and the exchanges importance will shrink.
No it wont.