US marks 9/11 attacks amid drumbeat of political violence
The remembrances today are being held during a time of increased political tensions.
By Carla Babb
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Before he was a hero on 9/11, he was a hero in Vietnam
In Vietnam's Ia Drang Valley and at the World Trade Center, Rick Rescorla helped others get out alive.
By Robert Batemen
Pentagon cuts back F-35 upgrades to slow schedule slips: Auditors
The F-35's Block 4 upgrades are being trimmed back so the program can focus on what it can deliver in 2031.
Appeals court throws out plea deal for alleged 9/11 mastermind
Friday's decision undoes an attempt to wrap up more than two decades of military prosecution beset by legal and logistical troubles.
Navy uses 3-D printing to manufacture destroyer parts
The 3-D printing process reduced the manufacturing time of one part, which traditionally takes nearly a year to produce, by 80%.
By Zita Ballinger Fletcher