"Around here at Gerber they call this The Black Box! It's where they try out their top-secret stuff! Bang it around!" Bear Grylls is excited. He's talking in exclamation points. Then again, on much of ...

Brow furrowed, Bear Grylls is concentrating. He's not lashing logs together for a raft or rappelling down an oceanside cliff. The survivalist and reality-TV star is building a knife at Gerber Gear ...