It seems like your school has forgotten about a few of your civil rights. Give a call to some ACLU lawyers.. They'd love to help you I'm sure
It doesn't matter if you're the Hitler youth, the school simply CAN NOT do that stuff. Wearing your letters is freedom of speach. Joining a fraternity is freedom of association and having your meetings is peaceful assembly. They should remember that whole bill of rights thing..
As for the wire tapping bit.. contact your local attorney general. I'm sure that a few school officials could end up in jail over this. You might even be able to sue for damages. Best of luck!