Frustrated by schedule delays and cost increases, the Army has directed Bell Helicopter Textron to stop work on the Armed Reconnaissance Helicopter, giving the company a final chance to save a program potentially worth $4.1 billion. Army acquisition officials have issued a "show cause" letter to the Ft. Worth, TX-based contractor setting a 30-day deadline for the company to rectify the difficulties that have led to significant cost growth and a one-year delay or face losing the project, according to...