Sofia, Jan 29: Iraq's Foreign Minister said today weapons of mass destruction acquired by the country's former rulers, which inspectors have failed to find, had been carefully hidden and he was confident they could be found. ''I have every belief that some of these weapons could be found as we move forward,'' Hoshiyar Zebari told a news conference in Sofia. ''they have been hidden in certain areas. The system of hiding was very sophisticated.'' Bureau Report