Lire http://www.columbian.com/news/2014/sep/02/777-may-replace-air-force-one/ Extraits Flying Air Force One is expensive. In 2012, the Congressional Research Service estimated it cost $179,750 per hour to operate. In 2013, it jumped to $228,000 per hour. So, for taxpayers, it may be better for the Pentagon to switch to the more fuel efficient…