Sniffing Trouble At Invision

For manufacturers of bomb-detection devices, some heartening news came on Oct. 1. President Clinton signed into law a bill that reserved $168 million for high-tech explosive-detection devices. The news sent buyers flocking to a NASDAQ-traded company called InVision Technologies (INVN). After all, this Foster City (Calif.) outfit is a publicly traded pure play in the bomb-detection biz. A sure thing. Or is it? A growing roster of short-sellers are betting that it isn't.

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