Ancient Secret Agents
- Episode aired Dec 10, 2009
- TV-PG
- 44m
Investigate the systems by which ancient intelligence services transmitted messages over thousands of miles and the ways in which they manipulated darts, poisons, and even explosives.Investigate the systems by which ancient intelligence services transmitted messages over thousands of miles and the ways in which they manipulated darts, poisons, and even explosives.Investigate the systems by which ancient intelligence services transmitted messages over thousands of miles and the ways in which they manipulated darts, poisons, and even explosives.