It’s been done for two decades but after the release of a new report, controversy is building. Should farmers irrigate crops with waste water from oil extraction? Even with recent rains, the demand for water sources is high. About 80 percent of the water used by Californians goes to agriculture. Stephen Stock investigates as scientists call for a halt to the practice until more is known about the chemicals in that water.
Sen. John McCain says a free press is vital "to preserve democracy as we know it." And he cautions about efforts to muzzle a free press, saying "that's how dictators get started." The Arizona senator was asked in an interview for NBC's "Meet the Press" how he felt about President Donald Trump's tweet criticizing "the fake news media" that said "it is the enemy of the American people." McCain tells "Meet the Press," ''The fact is, we need you." He adds: "When you look at history, the first thing dictators do is shut down the press." McCain says he isn't saying Trump is trying to be a dictator but "we need to learn the lessons of history."