A police officer chats on a mobile phone at a polling station during a referendum in Harare, Zimbabwe, Saturday, March, 16, 2013. All political groups have called for a 'Yes' vote on a

 

              A police officer chats on a mobile phone at a polling station during a referendum in Harare, Zimbabwe, Saturday, March, 16, 2013. All political groups have called for a
A police officer chats on a mobile phone at a polling station during a referendum in Harare, Zimbabwe, Saturday, March, 16, 2013. All political groups have called for a 'Yes' vote on a constitution whose reforms would reduce presidential powers and grant more democratic rights. However, even if the constitution is approved, arrests and harassment of rights and democracy activists this year by police loyal to Mugabe raise doubts about whether such changes would be seriously enforced. (AP Photo/Tsvangirayi Mukwazhi)