ABC News' man with the prop phone actually had a phone conversation with new-media guy Mark Glaser. He's not a common Blogger, and nor are his 15 reporters. Brian Ross is a Blotter : *On proving the IMs weren't fakes: "Instead we called Foley's office at noon, an hour and a half after we got [the messages], and they called back an hour later, and said, "Yeah, those are his. He's going to resign and we want to make a deal with you not to use them." That's how they were authenticated, they said they were his."