U.S. Defense Secretary Leon E. Panetta is issued a wero, or challenge, by Maori warriors during a Powhiri ceremony while visiting Auckland, New Zealand, Sept. 21, 2012. U.S. Defense Secretary Leon E. Panetta is issued a wero, or challenge, by Maori warriors during a Powhiri ceremony while visiting Auckland, New Zealand, Sept. 21, 2012. SHARE: Download: Full Size (2.7 MB) Tags: Photo Essays Credit: VIRIN: 454024-A-TKM08-937.jpg Photo Gallery