I just found a really good article stating that the buffalo aren't a major threat to cattle!!! There was a study done by UC Santa Cruz (of all places CA was the one to do a study on buffalo!). It basically says what all sane people know, there has never been a transmission of brucellosis from buffalo to cattle in the wild. The only documented case of the transmission is in captivity. The article also mentions the current bison management plan and it's flaws. One being the cost, stating: "Compensating ranchers for allowing bison on their land would cost half of what the current management plan costs - $2.5 million a year according to a 2000 estimate "