Military Mystery: World's Most Capable Fighter Jet Struggles to Stay Airborne

America's Air Force has again grounded portions of its stealthy fleet of F-22 Raptor tactical fighter jets. This comes on the heels of a recent four-month grounding of the fleet earlier this year. While the call for accountability is certainly warranted, Air Force leaders appear to be doing everything possible to keep the pilots safe while trying to identify the problem.

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