Okay, corruption like that should be corrected. Regardless, there's no scientific evidence that aspartame is harmful. Let alone a biochemical reason for why a dipeptide of two amino acids, phenylalanine and aspartic acid, that dissociates in the stomach into its constituent components and some byproducts would be harmful in the first place.
Unless you have phenylketonuria, but you have much bigger problems in that case and, if that is the case for you, kudos on being at an age and capability to read and understand this post, you are incredible.
Edit: Also, just noticed the part about US Right To Know, which is a well known anti-science group that's been pushing pseudoscience and fearmongering about other topics, such as biotechnology, for years. So them being involved here raises questions.