U.S. Attorney General Eric Holder is off the fence: letting guns “walk” into Mexico is a bad, bad thing. So . . . why did he allow it? Again, I’m wondering when Holder knew that the ATF’s gun smuggling “sting” operations had slipped from “let them buy the weapons and we’ll follow them and nail the kingpins” to “let my assault rifles go.” Was the walking part of the program official policy right from the git-go? I find that hard to believe. But if it was, Holder had to know about it. Should have known about it. Meanwhile, this halt to the policy is a post equine bolting gate closing effort. There are thousands of ATF-enabled weapons in Mexico, in the hands of people who kill other people without much thought. Just like Attorneys General who authorize ATF ops without much thought, except worse. I think.