Ahmed Ould Daddah, the brother of Mauritania's first president, Mouktar Ould Daddah, who died last month, is a veteran politician and head of the opposition Union of Democratic Forces-New Era. The 70-year old is also a former governor of the central bank of Mauritania, holding the post until 1978. Last Friday's presidential election saw Daddah come a respectable third in the polls which were criticised as rigged and ended with the arrest of the candidate who finished runner-up, reports from the