Barack Obama visits Nelson Mandela's jail on Robben Island

Barack Obama 'humbled' by visit to Nelson Mandela's Robben Island jailPresident Obama said he and his family were 'deeply humbled' by their visit to the Robben Island jail where Nelson Mandela was kept for 18 years. Obama stood in silence for some moments in the cell where Mandela -- who remains critically ill in hospital -- was held. The US president wrote in the guestbook: 'On behalf of our family, we're deeply humbled to stand where men of such courage faced down injustice and refused to yield'.