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F35 program may be unaffordable, auditor says

By Richard H.P. Sia

The most costly military program in history might wind up busting the Pentagon budget.

A close call for the world’s most advanced warplane?

By Douglas Birch

Fuel line leaks and a special vulnerability to lightning are the latest troubles for the Pentagon's advanced fighter jet

Costly work ahead for F-22

By Aaron Mehta

America's newest fighter jet needs years of upgrades and repairs, but pilots are not keen to fly them.