[펌] What's That Clinging To The Towering Wall And Why Doesn't It Fall Off?

http://www.npr.org/blogs/krulwich/2013/12/16/250846078/whats-that-clinging-to-the-towering-wall-and-why-doesnt-it-fall-off?utm_content=socialflow&utm_campaign=nprfacebook&utm_source=npr&utm_medium=facebook

WTH????!????!?!?

how great thou art...