Thanks Wabbit, it is 'intriguing' in a strange way...In one of the last two episodes, the researchers cite 'Terry Wriste' as a tunnel rat. I work with a guy from Vietnam (his dad is war age) and he told me about the tours they conduct through the tunnels there. The researchers mention that the tunnels were not originated by the Viet Cong but existed prior and were just used by them. My friend corroborated this statement telling me that the South Vietnamese citizens (different factions) that wanted to escape from the chaos kicked off by the French and their own people started building tunnels. He said they actually run into the city of Saigon. Anyway, either the 'alternatives' or ET's or Hobgoblins...somebody dug them.
Episode 5: Tensions rise as the team dives deep into the new emails. Tyler and Greg do reconnaissance.