Exit-Poll Data?

I like this quote:
The paid users of exit-poll data have signed a blood oath not to divulge it to unauthorized eyes, and the networks have promised not to call any states before their polls close. But the numbers always leak out to other journalists—such as the writers at Slate—and starting at about 5 p.m. ET or so, the news anchors start giving clues about what they've learned from the exit-poll results.