Kaeru said:
Oh and Nelson Mandela was a terrorist, thats why organizations like Amnesty wouldnt adopt him as a "prisoner of conscience". Killing innocent people is never justified, no matter what the cause is!!!
From wikipedia:
In 1961, Mandela became leader of the ANC's armed wing, Umkhonto we Sizwe (translated Spear of the Nation, and also abbreviated MK), which he co-founded.[32] He coordinated sabotage campaigns against military and government targets, making plans for a possible guerrilla war if the sabotage failed to end apartheid.[33] Mandela also raised funds for MK abroad and arranged for paramilitary training of the group.[33]
Fellow ANC member Wolfie Kadesh explains the bombing campaign led by Mandela: "When we knew that we [sic] going to start on 16 December 1961, to blast the symbolic places of apartheid, like pass offices, native magistrates courts, and things like that ... post offices and ... the government offices. But we were to do it in such a way that nobody would be hurt, nobody would get killed."[34] Mandela said of Wolfie: "His knowledge of warfare and his first hand battle experience were extremely helpful to me."[10]
Mandela described the move to armed struggle as a last resort; years of increasing repression and violence from the state convinced him that many years of non-violent protest against apartheid had not and could not achieve any progress.[10][35]
Later, mostly in the 1980s, MK waged a guerrilla war against the apartheid regime in which many civilians became casualties.[33] Mandela later admitted that the ANC, in its struggle against apartheid, also violated human rights, sharply criticising those in his own party who attempted to remove statements supporting this fact from the reports of the Truth and Reconciliation Commission.[36]
Up until July 2008, Mandela and ANC party members were barred from entering the United States except the United Nations headquarters in Manhattan without a special waiver from the US Secretary of State, because of their South African apartheid regime era designation as terrorists.[37][38]
As you can see, it's more complicated than just calling him a 'terrorist'.