I've always wondered why sometimes people have people who are working on the 'inside'. I know that that tactic may be very effective, but it's just wrong and unfair for everyone because it is a way of betrayal. The people that are working on the inside should feel a certain degree of guilt unless they are working and they get a gain. Sometimes people will just become your friend so that they can betray you and since there are so many of those people, no one can trust anyone anymore which doesn't create a good atmosphere in general. This can potentially create bad relationships between groups of people such as at school where people sometimes tell secrets that they shouldn't be and the the trust is lost and there is lots of tension during lunch time.