Ok, here we go. Guns has possessed a mystique in the American culture since its founding. In our early days, they were essential for self-defense and for food hunting. After the founding of our nation, the Second Amendment to the U.S. Constitution was passed as a reaction to Britain's attempt to disarm the colonies and to prevent a strong, overpowering central government from rising and oppressing the American people like the British Crown did. That is all. There is no God-given right to own, possess, or carry a firearm. In the modern day of a centralized federal government and an effective military force, the concept of the masses overwhelming the U.S. Armed Forces are pretty bleek. Despite what the militas and gun enthusists would have you believe, they would not last five minutes against a USMC fireteam.
That is the history and the reality of our situation. To give you a little background where I am coming from, I live in California. California, next to New York, is a state known for harsh and strict gun control legislation. I have a bachelor's degree in justice and a master's degree in domestic security. I have attended a California police academy and am qualified to be a police officer. I also served in the United States Marine Corps and am familar with military-grade hardware as well as domestic firearms. I am the son of a police officer and I have been shooting guns since I was five years old. I go to the range regularly and still out-shoot my comrades who are still active-duty police officers.
After the expiration of the Assault Weapon Ban in 2004, states have the power to legislate within their own jurisdictions on what weapons are allowed to the general public and what weapons are not. In California, the ban remains as a state law. The characteristics of an assault weapon under the AWB are complex and can be found here (http://en.wikipedia.org/wiki/Assault_weapons_ban#Definition_of_assault_weapon) if you want to know it. However, regardless of whether the AWB remained in effect, military-grade weapons (the type you see in video games) are and always have been illegal with a few exceptions. Under the National Firearms Act of 1934, weapons that are classified as "Type II" (or more commonly referred to as "NFA weapons") are heavily regulated. In order to receive a Type II permit, one undergoes an extensive background investigation conducted by the ATF, a tax of $200 per weapon transfer, and you must maintain an accurate registration with the ATF. In addition, one must often show cause for owning such a weapons and you surrender your Fourth Amendment rights against search and seizure. That means that federal officers have the authority to search your home, vehicle, work, and person at any time without cause to verify that you have the appropriate weapons and no additional unregistered weapons are in your control. Type II weapons are any automatic weapons, sawed-off shotguns, short-barreled rifles, destructive devices, silencers, or "any other weapon" defined as hazardous if concealled. This includes disguised guns such as wallet guns and cain guns.
Those are the laws governing military-grade weaponry.
For my personal and professional opinion, guns have been used as a scapegoat for human behavior since their invention. A gun is a machine, even a tool in my line of work. It is a collection of springs, rails, levers, and machined metal components that possess no more malice than your toaster. Historically, far more people have been killed with knives and blades than any other form of weapons. This may seem like a cheat since blades were invented thousands of years before the invention and perfection of the firearm, but homicides continue to be committed by stabbing, vehicles, blunt-force trauma, and stragglation (to name a few). Humans are wired strangely. It is foolish to believe that if guns were banned that the homicide rate would decrease. The desire is not to use a gun. The desire is to kill your target. If you don't have a gun, you are going to grab a kitchen knife, a baseball bat, a large rock, or just push the person down the stairs. Homicide and murder are with us for the duration of the species and any allusion to the contrary is false. If someone wants to kill someone, they will find a way to make it happen unless they are caught or the other person kills them.
Having said that, there is little to no reason why the average person needs anything stronger than what is available. I have handled and used many type of firearms in my life: pistols, shotguns, assault rifles, heavy machine guns, grenande launchers, distance rifles, etc etc. There is no situation that I can think that would reasonably happen where I would need anything more powerful than a civilian-available pistol. I currently own one firearm. I purchased it as a civilian. It is a 9mm pistol and I have four standard capacity magazines capable of holding ten rounds each. With my training and experience, I can handle a firearm as well as anyone, short of a trick shooter. That means, should my home be invaded, I have the ready capability to bring forty rounds to bear on my threat. If I need more than that, the chances of me surviving the encounter in any case is unlikely. In reality, I shouldn't need more than ten rounds to handle a single or even a double threat. Even if the worse happens, there are plenty of other objects to use as weapons (i.e. the afore mentioned toaster). To allow the type of hardware that the military uses to the general public, who do not possess the training, indoctrination, or oversight that our soldiers do is extremely irresponsibile.
As an aside, I wanted to address guns in the household for a moment. Someone mentioned above that they do not have children do that was not an issue to his argument. It is tradgic when a child is killed by an accidental discharge but I would also postulate that it is just as tradgic when they drown in a pool or are hit by a car. Parents or gun owners have been found criminally and civily liable for a child getting access to a gun and I am not here to argue the legality. What I want to propose is this: if you have a gun and a child, teach them about the gun. To prohibit something and hide it is to spark a child's natural curosity. There is no gun safety tool or item that is childproof. Modern children are smart. They are sophisticated. They can find keys, break codes, and find hiding places. If the kid is old enough to pull the trigger than they are old enough to foil a gun safety system. Knowledge is safety.
As I mentioned above, I am the son of a police officer. My dad joined the department before my older brother and I were born. Guns were in the house long before children were. My father had his duty weapon along with several other specialized pistols (i.e. smaller weapons for painclothes duty). Of course, my dad told us often that guns were not toys that that only he or our mother could touch them, yada yada yada. Standard parent speech. But what my dad did that was genius was that he taught my brother and I how to handle a gun. He showed us how, if we came across a weapon, how we could render the weapon safe without hurting ourselves or others. He taught us to respect and fear the power of the gun. Did I ever play with my dad's guns when he wasn't looking? You bet your ass I did! I was a kid in the glow of hero-worship of my dad and the gun was a powerful symbol of a job that made him cool and powerful. In truth, I looked at his badge with the same reverance. BUT...every time I touched a gun, I immediately checked if it was loaded and if it was loaded, I unloaded it. To this day, I still check every weapon I pick up to see if it is loaded, even if I just watched someone unload it in front of me. Was I a dumb kid? Yeah. Are some people going to be appauled by my dad's keeping of guns where I could get them? Yeah, probably. But think of this: I lived in that house until I was 18 years old. In 25 years of handling guns, I have NEVER had an accidental discharge. Even as a 5-6-7 year old, I knew that a gun was dangerous and I knew what was necessary to protect myself and those around me. THAT was more powerful than any lock, rod, or combination safe available on the market. An unloaded gun cannot kill.
Teach your kids. Show them what they need to know to make the weapons safe for handling. Do not hide the gun or make it a mystery.