Air Force officials believe they have identified a valve on the "G Suit" worn by F-22 pilots that has contributed to breathing problems for some, contending that the "vast majority" of the 11 most recent unexplained incidents in the aircraft can be attributed to the valve. In a press briefing at the Pentagon this afternoon, Maj. Gen. Charles Lyon told reporters that service officials studying the F-22's oxygen issues have concluded that one very significant contributing factor in hypoxia-like incidents...
