FILE - In this Jan. 23, 2013 file photo, National Water Commission David Korenfeld, center right, watches geologist Federico Mooser take a drink of water from an exploratory well where an aquifer was discovered, in Mexico City. Korenfeld announced his resignation Thursday, April 9, 2015, a week after social media filled with photographs, apparently taken by a neighbor on March 29, showing people walking with suitcases to a helicopter marked with the agency's name. (AP Photo/Dario Lopez-Mills, File)
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