The Marine Corps is working to get its delayed heavy-lift helicopter back on schedule after reformatting the program to address a host of technical deficiencies. Officials say the CH-53K King Stallion, a cargo helicopter that can lift the Marine Corps' Joint Light Tactical Vehicle, now has a more achievable time line. They maintain the technical issues are part of the development process for a new aircraft. But lawmakers, concerned by the numerous deficiencies, are seeking increased oversight of the helicopter...