Many people have heard of blood diamonds, but not everyone is aware that a lot of gold has a not-so-glittery side: irresponsible mining practices that hurt people and the environment. That's why I was glad to learn that the parent company of Sears and Kmart, along with jewelry sellers Blue Nile and Ultra, recently signed the No Dirty Gold campaign's "Golden Rules" pledge [link]. I just wonder, if Sears and Kmart can do it, why can't Neiman Marcus and Macy's?