ProPublica has discovered a tax loophole that allows ranchers in parts of the Colorado River Basin to get bigger tax write-offs the more water they use. On this week's news brief, Gavin Dahl speaks to Abrahm Lustgarten, senior reporter for ProPublica, about his article, “Gimmea Break! IRS Tax Loophole Can Reward Excessive Water Use in Drought-stricken West.”