Largely, in my opinion, because of SEC disclosure laws regarding the release of material information via press release and wire service.

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To an extent, long-form TV series like "The Sopranos" and "The Wire" have raised the bar by exploring this kind of material in the depth a mere movie can only hint at, and "American Gangster" bites off more than it chews.

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Multiple rods are grouped within another metal jacket which is then drawn and baked to convert the raw material to the ceramic form and the rod into a wire.

ECONOMIST: Cool coils