FILE - In this Friday, Nov. 16, 2012, file photo, the first F-35B fighter jet attached to Marine Fighter Attack Squadron 121 arrives at Marine Corps Air Station Yuma in Yuma, Ariz. (AP Photo/The Yuma Sun, Craig Fry, File)
WASHINGTON (AP) — Senators are seeking cost-cutting opportunities in the Pentagon's $400 billion program for the next-generation F-35, a fighter jet with a troubled testing record that military leaders say America cannot afford not to build.
Chairing the hearing, Sen. Dick Durbin on Wednesday compared the F-35's history to a textbook on how not to develop a plane.
The Illinois Democrat asked military leaders to justify a decade of expanding costs.
They stressed that costs were now decreasing.
Pentagon acquisitions chief Frank Kendall said the plane is 90 percent developed. Testing is almost half-done.
Kendall said no one is considering stopping the program.
The F-35 would replace Cold War-era aircraft including the F/A-18 Hornet and AV-8B Harrier. It's the Pentagon's priciest weapons program ever. Estimates suggest costs could reach $1 trillion.
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