Katie Couric's top 10 nearest neighbors are almost entirely fellow journalists — eight of the ten share her subcategory — with the remaining two slots going to a Government Official and a Politician, both from the political-media orbit.
The shape is flat: scores run from 0.97 (Andrea Mitchell) down to 0.95 (Chuck Todd) and Dana Bash), a span of just two percentage points across the full set. No single neighbor dominates; the cluster holds together as a tight, homogeneous band. George Stephanopoulos sits at 0.97, David Corn at 0.96, and Susan Rice — the one Government Official in the top 10 — at 0.96 as well. David Axelrod, subcategorized as a Politician, rounds out the non-journalist entries at 0.95. The remaining six positions — Chuck Todd, Dana Bash, Philip Rucker, Ann Curry, and Kristen Welker — are all Journalists, clustering in a narrow 0.95–0.96 band. No TV Shows, News Publishers, or other non-person entities appear in the top 10.
The overall picture is of an audience defined almost entirely by its own kind: a dense, same-subcategory cluster with minimal cross-category variation and no structural outliers pulling in a different direction.