Kathleen, I don't remember where I first heard that about beans, but it's been around for some time now. Personally, I would like to have the gov't. leave my food alone, I don't see that happening anytime soon.
I too, love the heirloom beans and living in Colorado, we have many of them. One good place to find heirloom beans is in Dove Creek, CO. Adobe Milling Co.
That said, and being raised in the puckerbrush of Maine, I still order yellow eye beans shipped to me every fall. I just love them, even though it takes forever to cook them at an altitude of 8,000 feet.