what are the potential implications of this? disease targeting? ethnicity targeting? i'm not too clear on the implication. also do they go through all the DNA, i thought that was really expensive to sequence.
Discussion
It's the genetic base of your social graph. All family members are associable and that's graph 1. All family members' friends are associated, through various means, back to the family members and that's graph 2.
It's simply the insidiousness of being able to trivially figure out "known associations" and that sounds a lot like "round up the usual suspects" to me.