Can we stop with useless ideas about gun-control? [View all]

Is there anyone out there who thinks once registered a gun cannot be:
>> illegally sold
>> legally sold but mistakenly not correctly re-registered
>> stolen
>> "stolen"
>> used in a crime by its registered owner
...


Had every one of Nancy Lanza's guns been registered, a school would still have been attacked.
There are now 300,000,000 unregistered guns in the US. The jurisdictions that have required some form of registration for some guns have seen compliance rates of less than 15%. Someone in another thread has pointed out that 50,000 guns are stolen per year. Do the math; criminals will run out guns in about 5,000 years. That's if every last newly produced gun is registered.

Can we talk about the ideas that have a chance of making a difference?
Please?