Britain's Prince William, Duke of Cambridge, (2nd R) smiles as he sits down to a lunch with Gerald Grosvenor, Duke of Westminster, (2nd L), Sir David Manning (R) and experts in illegal wildlife trafficking including retired U.S. Army General Carter Ham (L) at the International Corruption Hunters Alliance conference at World Bank headquarters in Washington December 8, 2014. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS ANIMALS CRIME LAW BUSINESS ROYALS)