Andrew Breitbart is "interviewed" by Martin Bashir on MSNBC. It could be subtitled, How Not To Cross-examine A Hostile Witness. In Breitbart's case, you don't. Period.

If you want to smear him, you'd best not do it with him in the room. The thing is that he has nothing to be ashamed of that he hasn't already admitted openly, and if he has a chance to answer, it's you who will look like the scoundrel. He's so naturally likeable that no impartial viewer is going to be interested in attempts to make him otherwise.