Tamara Explains it All

The next time someone says we need a database of gun owners, or that law enforcement is having their ability to track down guns used in crime, point them to THIS.

It's a concise, step-by-step explanation on how law enforcement finds weapons used in crimes. It's also a good explanation of how there's already a de facto gun registration in place.

UPDATE - I think I need to clarify something. The gun registration thing I mention above is my opinion. Tam never said or implied that in her post.