Well I've seen several religous programs about Jesus (despite my atheism I love learning about religion) and one of the topics was if Judas really betrayed Jesus. One view on the situation they expressed is that Jesus and Judas conspired with eachother, and planned the entire thing. However there are other different views on what actually happend so I don't know what to believe about it all. But atleast to me the theory I stated above sounds reasonable, becuase after all Jesus told Judas at the last supper to "do what he had to do". Signaling that he knew about the whole thing, and thus the theory that Jesus and Judas planned it out together emerges, which I agree with as plausible.