Studies also show that saturated fat is bad for you. Except now it isn't:
http://finance.yahoo.com/news/eat-fried-chicken-want-174400647.html
Studies are worthless when they are designed to prove a theory. That's why I have asked you to provide proof, in the way of something that actually happened. We live in the real world, not some fantasy world.
I can provide you with thousands of examples where the measures that your "studies" say are so effective failed. Yet you are unable to provide me
ONE instance where they actually stopped something from occurring.
The problem with your line of reasoning is that you don't understand how things work in the real world. Most batteries and murders are spur of the moment, in the heat of passion type actions. No one gets angry to the point of violence at their spouse or someone else and then doesn't do them harm because they had to wait to buy a gun. If they didn't have one already, they picked up a knife, a club, or used their bare hands to carry out the act of violence.
I can point to a murder that happened here 20 years ago that was planned and the murderer actually went out and bought the gun in advance, waited the 24 hours required by Illinois law, picked up the gun, telling the sales clerk at Wal Mart that it was for her husband, went home and shot him dead.
The waiting period had zero deterrent effect.
I can also point to plenty of instances where firearms being locked up in a safe did not stop children from gaining access.
I'm still waiting for you to show me
ONE verifiable report that these measures you espouse actually stopped a firearm from being misused.
I live in the real world. Not some fantasy world where things happen the way some telephone survey say they should. I spent 25 years dealing with the real world. Being the first on the scene. Investigating what happened. Arresting the suspects. Testifying in court. My opinions on these matters aren't based on some survey. They are based on what does and doesn't work in the real world.