looks like there's a "National Postdoctoral Associaton": http://www.nationalpostdoc.org/ http://www.nationalpostdoc.org/ ok then, why aren't all lab researcher

looks like there's a "National Postdoctoral Associaton": http://www.nationalpostdoc.org/ http://www.nationalpostdoc.org/ ok then, why aren't all lab researchers unionized? I don't even know if a labor union is the right fix to these problems.