A member of German air carrier Lufthansa's cabin crew union "UFO" blows a whistle at a strike post at the Fraport airport in Frankfurt August 31, 2012. Lufthansa cancelled 64 flights at its main hub Frankfurt on Friday as cabin crew began the first of a series of strikes over pay and cost cuts in a busy holiday season. The eight-hour industrial action, following the breakdown of 13 months of negotiations between Germany's largest airline and trade union UFO, is due to end at 1100 GMT on Friday. REUTERS/Kai Pfaffenbach (GERMANY - Tags: BUSINESS EMPLOYMENT CIVIL UNREST TRANSPORT) Published: Srp. 31, 2012, 8:04 dop. | Foto: Reuters