US Defence Secretary makes unannounced visit to Afghanistan
Defense Secretary Leon Panetta (R) talks with U.S. Ambassador to Afghanistan James B. Cunningham, (C), and Marine Gen. John R. Allen, (L), commander of International Security Assistance Force upon his arrival at Kabul International Airport on December 12, 2012 in Kabul, Afghanistan. The Defense Secretary is expected to meet with troops to thank them for their service. (Getty Images)
From underwater mining to luxury yachts, Mohammed Al Barwani has interests in a staggering range of industries. The chairman of MB Holding explains how he built the firm from scratch to become a billion-dollar player.