. >> i learned that a small cafo for beefs holds 7000. a large is well over 200,000.ow i can't help but wonder, with so many animals in such confined unsanitary how are they staying healthy? answer these antibiotics. >> a scenario where we raise livestock without antibiotics would result in illness and death of those animals. >> what is a practice that goes on widely is to put antibiotics in the feet of animals to help enhance -- feed of the animals to help enhance their growth. it has little to do with them being sick from an infection. >> are they used to prevent illness, or are they a growth stimulant? i decided to travel near and far to gather a variety of opinions. more superbugs evolve and bacteria that is resistant to all non-antibiotics. >> the doctor refers to as superbugs are antibiotic or drug-resistant bacteria. that the bacteria inside of us are no longer affected by antibiotics and other drugs, making medical advancements useless and ineffective. >> bacteria are one of the most serious public health issues. we face they cause tens of thousands of deaths.

one, congress needs to could confined -- the adjust the confinement and regulations among cafos.wo, as far as labeling goes, we are the ones buying into it. compare need to do is labels. educate yourself on what you need to be eating. in addition to this, the fda needs to crack down on its standards and make more fair and realistic labeling practices on all products. >> drought taking this journey, and i now know the background of my food, but even with this new understanding, it does not mean you should change her diet or what you tuesday one day. but now that you are enlightened, it will make you think next time you take a bite. ♪ >> to watch all of the prize-winning documentaries in this year's competition, visit studentcam.org. here are some of the programs this holiday weekend on c-span. eastern, a8:00 p.m. briefing on the discovery of seven earthlike planets orbiting a nearby star. >> we are currently using the hubble space telescope to determine if they have hydrogen -helium dominated atmospheres. prosll the discussion on and cons of genetically modified food. petland'sk t

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