Frank R. Walker, 66, an Air Force civilian supporting Operation Enduring Freedom died Oct. 28 of non-combat-related medical causes at Bagram Air Field, Afghanistan. Walker, of Oklahoma City, Okla., was assigned to the 72nd Civil Engineering Directorate at Tinker AFB, Okla., the Defense Department said in a release Oct. 31. The Tulsa World reported Nov. 1 that Walker died of a heart attack, citing a Tinker spokeswoman. Walker was a project construction manager with the US Army Corps of Engineers while overseas and was on his fifth trip to Afghanistan, according to the newspaper.
The U.S. could lose its ability to effectively operate in space without action to lower the number of objects in low Earth orbit, top U.S. generals said. Vice Chief of Space Operations Gen. David D. Thompson said his biggest concern was not debris from objects currently in orbit but the…