[4Rules]

The Second Amendment was designed to ensure that individuals retained the right and means to defend themselves against any illegitimate attempt to do them harm, be it an attempt by a private outlaw or government agents violating their trust under the color of law.
http://www.forbes.com/sites/lawrencehunter/2012/12/28/gun-control-tramples-on-the-certain-virtues-of-a-heavily-armed-citizenry/