Indeed, I kind of figured there was some sort of connection between Biko and the Amnesty International tours of the mid-80s, but I never had all the pieces laid out like that before. So the conclusion could possibly be drawn that Nelson Mandela was released from prison because Peter Gabriel wrote a song about Steven Biko? Thanks for filling in the blanks.
The conclusion can
certainly be drawn that he was released in 1994, instead of later, because Peter Gabriel wrote a song about Steven Biko.
If you want to really stretch it out, you could argue that the reason South Africa didn't degenerate into a
full-blown Civil War (a la Iraq over the last couple years) - whites versus blacks, Anlgo-speakers vs. Afrikaaners, Zulu vs. Xhosa - starts with that song.