Yes, I was wondering what the real reason was for wanting the DNA. I even saw a newspaper talking about having a DNA Day at the Ball park. Was going to be offering it for free.
Reaction to the news caused it to be shelved, IIRC.
DNA evidence allows eventually for custom drugs to be designed for you. Would also allow bad actors to customize poisons specific to your DNA and perhaps nobody else. All drink the punch, only the target dies, scary.