Messages Are Left For "Madiba" Outside The Hospital Where His Condition Is Said To Be Critical

PRETORIA, SOUTH AFRICA - JUNE 25: One of the dozens of hand-made messages of support for former South African President Nelson Mandela posted to the wall outside the Mediclinic Heart Hospital June 25, 2013 in Pretoria, South Africa. South African President Jacob Zuma confirmed Sunday that Mandela's condition has become critical since he was admitted to the hospital over two weeks ago for a recurring lung infection. (Photo by Chip Somodevilla/Getty Images)