While the new study is breaking, the history of aspartame being a carcinogen has always been known. Aspartame was known to cause cancer from the beginning. On August 1, 1985 FDA toxicologist, Dr. Adrian Gross, told Congress that at least one of Searle's studies "has established beyond ANY REASONABLE DOUBT that aspartame is capable of inducing brain tumors in experimental animals and that this predisposition of it is of extremely high significance. ... In view of these indications that the cancer causing potential of aspartame is a matter that had been established WAY BEYOND ANY REASONABLE DOUBT, one can ask: What is the reason for the apparent refusal by the FDA to invoke for this food additive the so-called Delaney Amendment to the Food, Drug and Cosmetic Act?"
Aspartame was never proven safe but was marketed through the political chicanery of Donald Rumsfeld. Dr. Jacqueline Verrett, another on site FDA toxicologist reported to Congress that all studies on aspartame should be thrown out, that they were built on a foundation of sand. Attorney Jim Turner in "Sweet Misery: A Poisoned World" explains how it happened: http://www.soundandfury.tv/pages/rumsfeld.html Dr. Jere Goyan, FDA Commissioner at the time would have signed the revoking petition into law. and that would have closed the book on this deadly chemical toxin. Goyan was fired at 3:00 AM the day after President Reagan took office. Reagam then appointed Arthur Hull Hayes as Commissioner to over-rule the Board of Inquiry.