so this yeart boon pickens writes about carl icaun.arton write writes abod daughter, miley cyrus. so in some cases we have people who have known each other for many years, but we also asked president obama to write pope francis, who he met for the first time a few weeks ago. >> rose: what is amazing to me about this is this simple idea-- people make a difference. >> we are living in a century that is so decentralized, digitized, democratized where somebody can go from invisible to globally famous overnight by a youtube video that the ability for individuals to exert power that's unprecedented in human history is really extraordinary. >> rose: in medical news this week, the nonprofit group end blindness by 2020, announced it is increasing the prize money it would award to ending blindness to $3 million. sanford greenburg is the chairman o eye institute at johs hopkins university. >> even after 50 years, i can still feel what it was when i went blind. for many months, i had declining vision, and my mother and i went to see a glaucoma spe