A Nevada-based company will build the Army's newest spy plane for $94 million, a program with the potential of reaching about $1 billion to enhance its aerial surveillance and reconnaissance capabilities, the service announced Thursday. Awarded as a 12-year indefinite-delivery, indefinite-quantity contract, Sierra Nevada Corp. will produce the High Accuracy Detection and Exploitation System (HADES) for $93.5 million, an aerial intelligence, surveillance and reconnaissance system carried aboard a Bombardier Global Express 6500, a 99-foot, twin-engine aircraft used as a business...