Flying high-altitude spy planes tied to brain lesions

NEW YORK, Aug 24: High-altitude pilots in the Air Force have a poorly understood type of brain lesion three times as often and four times as large as those seen in the brains of other military personnel, according to a new study. The lesions appeared on brain scans of an elite group of U-2 high altitude reconnaissance aircraft pilots, of whom there are fewer than 200 in the US. (agencies)