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, “Gimme a Break! IRS Tax Loophole Can Reward Excessive Water Use in Drought-stricken West.”