You be very careful about saying negative things about the Watchtower Society to your brother. This is just what the Organization will use against those who try to reach out to the JW, by claiming persecution of the "Truth". Ever see a movie called, Alien? This creature attaches itself to the victim?s face and wraps its tail around the victim?s neck. As the doctor tries to pull the tail away from the neck, the tail just tightens even more.
Just be very careful how you go about ?pulling the tail?, as it were. Try to keep it generic. I like your idea about mentioning JW?s making the news with the UN. That?s good I think. You have to be crafty like a fox but remain innocent like a dove, or the ?tail? will tighten. He?s gonna be bombarded several times a week by Watchtower ideology. So, keep in mind it will be hard for him to hear your ?voice?. You could just try not mentioning anything about his religion and see how that goes. But then you?ll probably blame yourself for not trying to do something. In all actuality though, sadly, there is very little you can do. Becoming a JW is a bit like getting to close to a whirlpool. The pull inward starts gradually in beginning, but very soon the force of it overwhelms and the victim is pulled completely in. And very often there is little to do to save them.
I wish I could be more encouraging but my experience (and that of many others that I have seen in very similar situations) tells me that the odds are against you if you are planning on getting your brother out of the group. Just let him know how much you love him and by all means let him know about your successes in life. JW?s don?t like to think that other?s besides them are successful life or are truly happy. They ?want? to think that they are the only truly happy successful people on the earth. So, use this to your advantage. If you believe God has blessed you in some way, then share that with him. If he suggests to you that that wasn?t God, don?t argue. Just smile and say you believe it was and give him another example of His provision(s). But don?t do it in an argumentative way. Just state the facts, as you believe them to be.
Good luck.
Steve