FILE - In this Thursday, June 27, 2013, file photo, members of the ruling party youth league, sing as they place well wishing messages outside the Mediclinic Heart Hospital where former

 

              FILE - In this Thursday, June 27, 2013, file photo, members of the ruling party youth league, sing as they place well wishing messages outside the Mediclinic Heart Hospital where former
FILE - In this Thursday, June 27, 2013, file photo, members of the ruling party youth league, sing as they place well wishing messages outside the Mediclinic Heart Hospital where former South African President Nelson Mandela is being treated in Pretoria, South Africa. President Jacob Zuma canceled a trip to Mozambique on Thursday in an indication of heightened concern about Mandela, whose health deteriorated last weekend. (AP Photo/Themba Hadebe, File)