Thursday's NewsHour: Garry Trudeau Looks Back on 40 Years of 'Doonesbury'

*Click on the icons above to read the comics.* It's been 40 years since Garry Trudeau first started to pen "Doonesbury", a comic strip that has entertained and provoked readers as a chronicle of the baby-boom generation, part sharp political commentary, part very funny comic strip. In 1975 Trudeau became the first comic-strip artist to win the Pulitzer Prize for his Watergate cartoons. Decades later, he's brought new attention to the valor and suffering of contemporary war veterans. Thursday on the NewsHour, Jeffrey Brown talks to Garry Trudeau about his brand new book, "40: A Doonesbury Retrospective." **Watch the NewsHour interview:**