Whereas Thursday's Garfield may have inadvertently offended some people, when Garry Trudeau's Doonesbury offends its most often entirely intentional. Believe it or not, Trudeau has been offending and entertaining readers daily for forty years now. Brooke Gladstone, co-host of NPR's On The Media, interviews the cartoonist on this week's show. Gladstone and Trudeau cover the entirety of his four decade cartooning career, from the strips origins as a sports strip in the Yale newspaper to his early 80's sabbatical to the recent dramatic changes in the life of B.D. and the ascendence of a new generation of characters led by Mike Doonesbury's daughter Alex. You can read a transcript of the interview (available on Monday) or just listen to it at the On The Media web-site by directing your browser here.