Kevin Kelly at the Technium:
As far as I can tell, if you visited my home today it is legal for me to slyly snatch an "abandoned" sample of DNA from you (from the lip of a cup, a fallen hair, etc.), sequence it in full, and publish your DNA online for the world to read. Of course I wouldn't do that, but in April 2008, a seller on eBay peddled the remains of Barak Obama's restaurant breakfast claiming that "his DNA is on the silverware."
In England a new law prohibiting "DNA theft" makes this stealthy genetic sequencing illegal. But in the US only 8 states have any restrictions at all on sequence others' DNA (California is not one of them), and these restrictions are neither clear, consistent, nor absolute.