Article: Choices Limited For Detecting Liquid Explosives.(Small Parcel Explosives Detection System)(airport security)

By Calvin Biesecker

The disclosure yesterday that British officials foiled a potential terrorist plot to explode bombs aboard several or more aircraft using liquid explosives and other materials showed that security systems, particularly at passenger checkpoints, are still lacking in their ability to at least detect certain explosives.

"The terrorists planned to carry the components of the bombs, including liquid explosive ingredients and detonating devices disguised as beverages, electronic devices, or other common objects," Department of Homeland Security (DHS) Secretary Michael Chertoff said yesterday. As a result, the U.S. and Britain ...

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