Seeking an Officer for theDEA or US Marshal...

I don't know if this will help, but it's an article on a conference that involved the Witness Protection Program: http://www.usmarshals.gov/witsec/americas_star.pdf

Since it was opened to the press, you may want to check with some of the major newspapers and see if they covered it. The Washington Post might have carried an article. It's also possible the conference site could still be up, maybe with some helpful articles.