00:00Roman legionaries concealed hidden messages within the hems of wool garments.
00:05Agents extracted legendary Tyrian purple dye from marine snails to stain fine garments.
00:12Steganographic techniques allowed agents to encode messages in woven textile patterns.
00:19Border guards inspected outer garments without noticing the microscopic dyed threads concealing encrypted troop movements.
00:26Enemy sentries routinely missed the hidden intelligence because Roman agents smuggled encrypted troop data within dyed threads.
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