Firing Line host Margaret Hoover was once a regular guest on Bill O’Reilly’s prime time Fox News show. With a new book out this month, O’Reilly must have figured all publicity is good publicity. Otherwise, it’s hard to know why he agreed to go on Firing Line, knowing that Hoover was very likely to ask about the sexual harassment cases that forced him out of Fox. Hoover didn’t ask about the cases directly.