The Professional Services Council and the U.S. Chamber of Commerce are seeking to bolster a case filed by Boeing over markings intended to protect the company's technical data. Boeing's long-running case concerns marking legends it used to indicate that technical data was proprietary. The issue initially arose over work done under the F-15 Eagle Passive/Active Warning Survivability System program, according to an Armed Services Board of Contract Appeals document . Boeing marked its data deliverables to the government with a...