Magic, Snowflakes, Religion, The Holy Earth

Magician and author Allan Kronzek shares his lifelong enchantment with magic. Physicist Kenneth Libbrecht talks about the science of snowflakes. Religious historian Elaine Pagels explains why we still care about religion through the lens of her own personal tragedies. John Linstrom talks about the father of horticulture, Liberty Hyde Bailey, and Bailey's book "The Holy Earth."