What PI? Can you explain more? (I don't know how I missed it, but I seem to have . . .)
The Swift Vets had hired a private investigator to talk to some of the people before while they were organizing. They wanted to make sure they had the facts first, I'm sure.
The private investigator interviewed several of Kerry's crew (perhaps without them knowing why).
Then when Swift Vets came out as a group, Kerry's campaign told those guys not to talk anymore.
I think O'Neill mentioned this in his Hardball interview with Christine. It may be in that transcript.
http://www.msnbc.msn.com/id/5694561/
Transcript of last night's show--last or nest tolast segment