Sadly, there are a couple individuals here who are well known for repeating unfounded and/or unsupported rumors about any organization other than theirs. This is sad, because I personally think there is plenty of room in the world for different, equally valid, flavors of Tae Kwon Do.
Actually, both GM Lee and GM Rhee hail from our organizations. GM Lee for example, is a Jidokwan member, which was my first kwan and also mastercole's kwan. Both of us also enjoy solid personal relationships with many jidokwan members, including the past and current kwan jang. My jidokwan teacher lives about two blocks from me and one of my closest jidokwan seniors lives almost exactly one mile down the road. I know this because he jogs past my house and he said that looping past my house is the one mile mark. GM Lee also has kukkiwon certification.
GM Rhee as well as at least one of his brothers also have kukkiwon certification, even though they teach a version of the ITF curriculum.
As for different flavors of taekwondo, again, I am constantly stating my opinion that you can teach whatever you want as far as taekwondo goes. However, if you are going to vary from the kukkiwon curriculum, then please do not mislead people into thinking that what you do conforms to the kukkiwon technical standards when they do not.