The wildfires engulfing Los Angeles have put an uncomfortable spotlight on two of its richest residents — Stewart and Lynda Resnick — agriculture tycoons whose farms guzzle a vital and scarce resource: water. So far, the Resnicks' Beverly Hills mansion, and the Picasso artworks that adorn its walls, have been spared the nearby Palisades and Eaton fires, even as their celebrity neighbors' homes go up in smoke. But they cannot so easily escape criticism for their agriculture empire, which sucks up more water than whole cities, even as LA firefighters cannot get a drop of the stuff out of the...