We have the internet these days, it's even easier than ever to know when they are lying these days.
It is my belief that the internet is definitely serving a purpose but I don't think it is a beneficial one from our perspective although it is certainly made to appear that way. Everything in this life has a positive and negative aspect to it and until you have looked at both, you are not in a position to have a considered opinion. The trouble is with most things in life is that the positives are pushed in our faces and the negatives are hidden from view so that our thoughts on any given subject are steered in a certain direction. The most useful form of control is control of the mind and this is the biggest problem we face in our modern world, the organised and orchestrated control of information to the masses by the few.