I'm definitely not a aluhead wearer, but I believe there are hidden agendas by governments, since mankind is writing history. To the content of the series: Without the endlessly repeating, unsubstantiated claims of these conspiracy theorists, every episode could have been stripped down to 10 minutes. But even these 10 minutes would be waste of time. Besides this, just think about this practical facts: If this underground constructions would have been really built, how many working people would have been necessary? Is it really believable, governments could have been hidden all this tens or even hunderts of thousands of people? And where would have they hidden the huge amount of excavated material?