Well more with the crackpot theories theme. Why is there such a "Geneva Convention" attitude towards dealing with the zombies. I am sure people with combat experience like Michael, Saul and Burt could come up with some dastardly gravity type traps, IED's and so forth to protect the tower. I know they are dealing with a bunch of civilians but the term civilian would no longer exist in my opinion. The lookout structure is totally wrong. There should have been lookouts assigned to watch adjacent rooftops because that is just sound strategy. That way hopefully a "smart" zombie wouldn't be able to assess the tower without having to at least dodge some bullets.