bruce tolentino led us to research most well guarded treasure so this building. this is called worth. access to this greenhouse is controlled you have to log in and we ensure that no animals birds or rats get into that we notice and spread the seeds around because we want to make sure that the research being done here follows all the protocols for credible science. that golden rice growing in a hermetically sealed greenhouse. is the security intended to protect animals. what would happen if burris started eating vs beta carotene greens. the answer to this question has yet to be investigated. dearie demonstrates how the genetically modified plants are harvested one by one. ok well this varieties are being planted and we are testing a range of varieties to find out which of the varieties can yield the greatest level of beta carotene and we try to improve the varieties each step of the way and at this stage it's been an improvement from the varieties that are planted out in the field but we keep working because the beta carotene content needs to be improved so that