1. Biological Weapons

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. 9 June 1995

They're emerging, host Bill Kurtis says, "as one of the greatest threats of the next millennium." Included: speculation on biological-warfare scenarios; a look at various types of biological weapons; a history of germ warfare and efforts to control it.

2. Danger on the Rails

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. 17 November 1995

This A&E documentary deals with train safety at railroad crossings, deadly train crashes and major railroad accidents.