When you turn on the tap or twist the cap, you might not give a second thought to where your drinking water comes from. But how it gets from the ground to your glass is far more complex than you might think. Is it safe to drink tap water? Should you feel guilty buying bottled water? Is your water vulnerable to terrorist attacks? With springs running dry and reservoirs emptying, where is your water going to come from in the future?In Drinking Water, Duke professor James Salzman show...