Okay I felt uncertain about certain issues with the movie. Firstly, Sentinel said he only had 5 pillars right? And they said they supposed to have 100 pillars. So where are the other 95? Was it with the Decepticons all the while or was it at NEST, and Sentinel took all them and had Decepticons putting up the pillars around the world? Secondly, they say they had plan this for 50 years and were recruiting human agents, like Dylan. So what's the point the of a human agent in the first place? What did he do other than getting Sam to find out what was the counter plan of the Autobots? What's the main purpose of a human agent? Thanks.