WORDS ON A WIRE: Billy Collins (extended)

From Sept. 23, 2012, Daniel talks with former US Poet Laureate, Billy Collins. The New York Times calls him "the most popular poet in America." Collins talks about his obsession with mortality, and about seeing his poetry come to life through animation. And in this online exclusive, Collins also talks about the projects he accomplished while serving as US Poet Laureate, and about being born in the same hospital where American poet William Carlos Williams practiced medicine. Poet Billy Collins contributes this week's Poem of the Week, reading "Revision" from his latest collection "Horoscopes for the Dead."