Retired Lt. Col. Robert L. Riedenauer, who flew development aircraft such as the SR-71 and U-2 while in the Air Force and later, as a Lockheed Martin test pilot, the F-117 stealth fighter, died at age 70 on April 23 at his home in Palmdale, Calif. The Associated Press reports he had fought a long battle with cancer. The City of Lancaster, Calif., inducted Riedenauer into its Aerospace Walk of Fame in 2002.
The Chinese spy balloon may have popped, but funding to protect against similar threats is inflating, according to the Department of Defense. The high-attitude surveillance balloon that traversed the U.S. in late January and early February prompted last-minute additions to the Pentagon's budget of around $90 million for measures to…