MintPress 17-02-17 Original post Cached copy US Labor Unions Push Back At Trump On Pipelines And Environmental Deregulation MintPress - 2017-02-17 - Original post - Cached copy Jeff Holland takes a picture of some of the 300,000 computer-controlled mirrors that reflect sunlight to boilers that sit on 459-foot towers Tuesday, Feb. 11, 2014 in Primm, Nev. (AP/Chris Carlson)