dr. rosenburg, the cdc has not been funded to do anything on gun safety since the 1990s. but you have written that we have spent billions of dollars since the 1970s on70s on prevention of traffic deaths. could the same help in this situation? >> obviously it could. obviously, jay dickey has over the years become a friend and we've both influenced each other and we both agree that this research is so important. it is a matter of life and death and jay dickey would today say that was a mistake and we need to do everything we can to get the research going again. >> an important discussion considering how many people are dying, and i appreciate you two joining us today. >>> americans spend billions on health and diet products, how are we supposed to know what to buy and eat these days? countless mixed messages about what's good for us, what's bad for us, certainly not more than in the last couple of weeks. focusing on saturated fats, red wine or dark chocolate or gluten is a poison or gluten free is a positive fact. andrew wile,ing university of arizona health sciences center

dr. steven rosenburg is chief of surgery in bethesda, maryland.u're very busy doctor, one of the lead researchers in cancer but this is a remarkable story about what you saw helping one woman use their own cells to attack the cancer. the simplest way, how does this work? >> we've been working for many years to try to find new cancer treatments based on stimulating the body's immune system and we've published extensively on the ability to remove the warriors of the immune system from a patient's body, identify the immune cells that can recognize the cancer examine give them back and we've been doing that in patients with metastatic melanoma for a long time. how do we attack common cancers like colon and pancreas and ovary and prostate? so we've developed a new technique now where we generate a patient's own immune cells to recognize the mutations that occur in the d.n.a. of that tumor. that's what actually makes a normal cell into a cancer cell. so by attacking those mutations that make the cancer cell what it is, we can apply a highly specific tre