cape town unite state discriminate nuclear coal industries administration former president barack obama u.s. secretary energy rick perry say wednesday nuclear coal ... two industries discriminate course last administration perry tell reporters oil conference cape town ask u.s. government directive support age coal nuclear plant directive would reward certain nuclear coal-fired plant store 90 days fuel site contribute reliability national grid u.s. industries rarely agree include gas drillers renewable energy producers oppose ground prop uneconomic generation ask threats u.s. energy supply perry former governor oil hub texas cite cyber security main concern follow natural disasters hurricanes obama discriminate coal nuclear u.s. energy secretary