If near a TV set with access to the US public broadcasting system channel I recommend you tune in tonight's "Faces of America." The episode is advertised to be focusing on DNA tests conducted on 12 "renowned Americans" by California-based autosomal DNA testing company 23andMe.
For those who haven't seen the previous "Faces of America" episodes, the program is exploring the questions "What made America? What makes us?"
I was surprised and pleased they included Malcolm Gladwell as one of the "renowned Americans." Not that he doesn't rate the renowned label. It's a bit unusual that a US program would acknowledge that there is an America, and are Americans, outside the US. With his mixed British-Jamaican ancestry, and Canadian upbringing, Gladwell provides a stimulating contrast to the all too frequent myopic US view.
Those outside the range of PBS can get a good flavour of the program, including video highlight snippets and even whole episodes, at www.pbs.org/wnet/facesofamerica/