Yesterday the House voted 414-1 to approve the Genetic Information Non-Discrimination Act, which says that employers and insurance companies can't discriminate on the basis of a gene scan. That means (after Senate ratification and presidential signing, of course) that you can't be denied employment or coverage for diseases you don't have yet, but are at genetic risk to acquire in the future. I'm very interested in this. My interest comes not from my personal genescan (I've never had one) but because I wrote about this as long as fifteen years ago, in "Mountain to Mohammed." In that story, society is divided into the insurables and the non-insurables, and you pretty much can't get health care at all if you're in the latter category.
It's always good to realize that one's more dystopic visions can get counteracted by the future. Which is not to say that we don't have huge numbers of uninsured people (45 million, including some people I love). Financial issues can exclude just as effectively as genetic ones. However, I'm pleased by this act of Congress not only on practical, but also on literary grounds.
Because SF is made up of stories, and stories need conflict, we writers tend to come down heavy on the negative side of not only political but also scientific developments. That attitude short-changes scientific progress. I think that gene scans will, in the long run do far more good than harm -- even if my story said otherwise.