After making it through the various security check-points on my way to the National Institute of Health Sciences (NIEHS), and the security in the main lobby, I met with some of the staff of the National Toxicology Program (NTP) Pathology Group. The NTP Pathology Group designs, reviews, and analyzes long-term rodent studies in the field of toxicology and carcinogenesis. I will be working with Dr. Dave Malarkey, the head of the Pathology Group. Specifically, I will be contributing to one of the NTP’s more recent studies: GSM and CDMA Modulated Cell Phone Radio Frequency Radiation. Essentially, the goal of the study, conducted over a couple of years and by dozens of scientists, is to determine whether or not the radiation emitted by cellular devices is carcinogenic. After a quick briefing by Dr. Malarkey about the study and pathology in general, I made my way to the ten-headed microscope, where I joined a couple of veterinary students in identifying a variety of cancers in rodents using histopathology cases, or stained slices of organs. Then I reviewed some slices of a human bronchus and categorized the cells into neutrophils, eosinophils, macrophages, or lymphocytes. Finally, I traveled with Dr. Malarkey to review the research of one of the post-doctoral fellows working at the NIEHS, and also to an NTP Pathology Group birthday party for one of the scientists.