Hi, Bob, I went to some pains to not say I was "threatened." If I were in the DLF/TMO's position, I probably would have done something similar. Their letter was not a direct threat, by any means. My guess is that they will be surprised that I am canceling the event.
My actions were about doing the right thing: not entangling my panelists in legal proceedings. Actually, I have some trouble chewing gum and walking at the same time. :) J.