It is harder to lie in an interview. A good interview - and it can be polite - is not a one way street like a candidate controlled ad. An interview is not programmed by the candidate and so the candidate can't be exactly sure what will be asked.
Greta Van SusterenIn an interview with a journalist, you look petty taking the pot shot but in a slick ad you can really do damage - including unfair damage - from afar. It is not that much different than waging a war by a drone than by hand-to-hand combat.
Greta Van Susteren