From donga.com, a Korean view of the future of regenerative medicine, medical nanotechnology, and healthy life extension: "The National Science and Technology Council (NSTC) has unveiled its projection ... In 2020, robots the size of a nanometer (one-billionth of a meter) will travel around blood vessels, clean them, and heal the damaged areas just like car technicians. Also, 'nano capsules' will circulate one's body, encountering pathogens such as viruses, and eradicate them by emitting drugs contained inside. ... Diseased organs in fatal conditions can be replaced by transplants, or 'alternative organs,' cultured from one's own stem cells. Once these prospects come true, we will usher in the era of healthy longevity in two decades."