Arts, Culture & Media

Singing between the lines

The Christmas carol "O Come All Ye Faithful" may contain a hidden political message. We hear from a professor in the UK about the coded meaning, which he says was to be understood by rebel English Catholics in the 18th Century.

Arts, Culture & Media

Decoding the Alhambra

Investigators are trying to catalog the thousands of Arabic inscriptions that cover the walls and columns of the Alhambra. Its inscriptions shed light on its history. The World's Gerry Hadden reports from Granada.