A tribute to a pioneering woman war correspondent

In 1965, photographer and writer Dickey Chapelle was killed in Vietnam, becoming the first female American journalist to be killed covering a war. In the new book, "Dickey Chapelle Under Fire", author John Garofolo talks about Chapelle's work, influence, and career choice at a time when few women entered the profession. NewsHour's Megan Thompson interviews Garofolo.