The Navy's V-22 program office says a missing clamp is to blame for a hydraulic failure that Osprey No. 21 experienced near Quantico, VA, during an Aug. 4 flight. Why the clamp was missing -- whether it was somehow removed or was never installed at the factory to begin with -- was still under investigation this afternoon. Either way, it is not good news, a Pentagon official told InsideDefense.com . But the official suggested the incident should not affect the...