Season 6, Episode 20 Spy Technology

First Aired: March 15, 1999

One hundred years of cloak-and-dagger technology is examined, including code-breaking machines and satellite reconnaissance. Also: Cold War espionage.

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  • Premiered: December 10, 1993
  • Rating: TV-PG
  • Premise: Architectural and engineering landmarks of the 19th and 20th centuries. The programs previously aired on A&E's `Time Machine' series. Among the subjects: the Brooklyn Bridge, the Maginot Line, the Erie Canal, the Aswan Dam and the Trans-Siberian Railroad. (more)

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