@Robert Gentel,
Damn, I just read an account of what the access logs said. The claim is that people on Sanders campaign made specific searches for people based on their scoring data (how likely the Clinton campaign thought they were to vote for Clinton).
If this is true (and there is no reason to believe it is not true), then this is a pretty significant ethical breach on the part of the Sanders campaign.
Even as a strong Sanders supporter who believes the DNC is unfairly tilting the race in favor of Hillary, I have to admit that this is a big deal.