Zimbabwe's President Mugabe and PM Tsvangirai attend a conference reviewing a draft constitution in Harare

Zimbabwe's President Robert Mugabe (R) and Prime Minister Morgan Tsvangirai clap at the start of a conference of parties and civic society groups reviewing a draft constitution that, if adopted, will lead to Zimbabwe's next election, at a hotel in Harare October 22, 2012. REUTERS/Philimon Bulawayo