Investigative ReportsSeason 51995 · 2 episodesEpisodes1Biological WeaponsThey'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.2Danger on the RailsThis A&E documentary deals with train safety at railroad crossings, deadly train crashes and major railroad accidents.Season 1Season 2Season 3Season 4Season 7Season 8Season 9Season 11Season 12Season 18
