Sewers

 

Biot356PhotoB.jpg

Biot356PhotoB.jpg

Summary: US worry that that terrorists could use these access points to covertly place incendiary devices or other weapons of mass destruction beneath a major population center. The disastrous series of sewer gasoline explosions in Guadalajara on Wednesday, April 22, 1992 , though not caused by a terrorist attack, demonstrate the potential impact of

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Image originally found here.