When you life is in danger you will do what it takes to keep living. You never know what you will do until you are put in certain situtations. Plus Mandela had been looking sickly from the way he had to work, the beatings and the way they were feed. They wanted to make it look like they took good care of him while he was in prison.
The reason why they let Mandela out was because South Africa had started planning to fight for their freedom. They would rather die on their feet fighting back than on their knees begging for mercy. And America warned Botha there is a chance they can take their country back. But Reagan tried to send American troops to South Africa at one time to help a white devil genocide and take a country. Now that some of the stuff got exposed and they put santions on South Africa as though they were in favor of blacks being free and cameras were no longer banned from there that the whole world would watch blacks killing whites wholesale. And we would also be watching whites killing blacks wholesale and it might make black and whites all over the world take sides and the killing might flood into other countries.
This is not to take away from Mandela sacrafices. He did more than a lot of leaders. But we cannot keep building up white power for them. At least during slavery we knew who the enemy was. From what I see only the blacks who act like they came over here on the mayflower have any real money. They steady locking blacks up and being paid for it. More blacks in prison than it was in slavery. Whites have always been paid and made to feel they doing God a favor by killing blacks.