José Feliciano wishes you "Feliz Navidad"

From a career that has lasted more than half a century, singer and guitar virtuoso José Feliciano is perhaps best known for his timeless Christmas classic, "Feliz Navidad" – though it wasn't immediately a hit upon its release 50 years ago. "Sunday Morning" contributor Kelefa Sanneh talked with the 75-year-old Feliciano about the battles and blessings of growing up blind, and how finding his musical voice became his greatest joy.