Petroleum's Long, Strange Trip to Your Tank

When you fill ‘er up at the gas station, do you ever wonder about where gasoline comes from and what it took to get it there? Journalist Lisa Margonelli does. And it was that curiosity that prompted her book, now out in paperback, “Oil on the Brain: Petroleum’s Long, Strange Trip to Your Tank” (Broadway, 2008). She’ll join us this hour.