better late than never?

I read this in an article on yahoo tonight. "Wal-Mart, the nation's largest seller of firearms, announced Monday it will toughen rules for gun sales, from storing video of purchases to creating an internal log of which guns they sell that are later used in crimes."

My initial reaction was pure shock that this concept somehow appears to be an epiphany. Then I read on and learned that this might actually upset some folks but that Wal-Mart is taking a stance and doing it anyway. Heroes that they are.

This moved me quickly from shock to bitter disgust. I get it, people like guns. I don't, but people do. But, if you're not a criminal buying a gun why in the world should you care?

Help me out people. What am I missing?