Demonstrators take part in a protest outside Madrid's Barajas airport November 29, 2012. Spanish airline Iberia's ground and cabin crews will stage a series of strikes in December, disrupting the holiday travel season to protest against massive job cuts. The around-the-clock strikes will be held on December 14 and the five days from December 17 to December 21, union leaders said on Thursday. REUTERS/Susana Vera (SPAIN - Tags: TRANSPORT BUSINESS EMPLOYMENT CIVIL UNREST)