UGH! These type decisions make me angry. First - BMI - is so ridiculous other than a broad indicator. One of my jobs at work is to interview potential living organ donors. One very handsome, athletic, man came forward to be a living kidney donor. He was initially rejected because of his BMI. He wanted to help his friend so much, he came to the clinic in person (initial interviews are over the phone) and the physicians were so impressed with how healthy he was - solid muscle. Muscle weighs more than fat for the same space. Beyond that, it is discrimination pure and simple. If we forbid everyone that ever had a "shortcoming" from surgery, we would have no surgeries. You are a diabetic - oh dear - were you 'compliant' 100% of the time? Did you take a medication that wasn't subscribed to you? Sorry! You have a past history of X, Y, Z - you are out. I do understand that certain behaviors or histories place you at greater risk. I also understand in a more socialized system, to stay functional/afloat, some restrictions have to be in place. But like James, the most effective treatment for morbid obesity requires surgery and can address a host of comorbid conditions. Any kind of ban would be counterproductive and discriminatory.