Malaysian Prime Minister Mahathir Mohamad, third from left, flanked by Deputy Prime Minister Anwar Ibrahim, right, and their wives, cut a giant cake in celebration of Mahathir's 15th year as Prime Minister, Wednesday, July 24, 1996. Mahathir is one of the longest reigning leaders in the world. The cake is topped with a model of the Petronas Towers, which stand in Kuala Lumpur, and are the tallest buildings