On the Blade Network web site (note the .net address or you wind up on a site about hand-crafted knives) the company illustrates a rack with two Intel Xeon quad core blade servers with other components for high speed messaging and switches.

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On the other hand, searching for the knives on passengers or in their carry-on bags is time consuming, Pistole said.

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One set of tools is essential for life: knives and other hand tools, fire and other tools for clothing and warmth, agricultural tools and transportation tools such as packs, wheels, wagons, harnesses and saddles.

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James Hardcastle, 32, had his left hand amputated after it became trapped in the rotating knives of an industrial tenderiser in December 2009.

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But after consulting with Federal Air Marshal Service leaders, the agency opted to continue excluding knives that most closely resemble weapons, specifically knives with blades that lock in place, or have molded hand grips.

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