An alcoholic is commonly portrayed as a slurring, stumbling bum. But alcoholics can also be high-functioning, the successful dentist or the college honor student who engages in out-of-control weekend drinking. Of the estimated 18 million Americans with alcoholism, it is thought that at least 20% are high-functioning. Some experts think the figure is even closer to 75-90%. In her book "Understanding the High-Functioning Alcoholic," Sarah Allen Benton brings insight to this behavior by drawing from research, interviews, and her own recovery from alcoholism. She shows that despite professional or personal successes, all alcoholics have the same disease. She joins Larry Mantle to talk about her book.