I'll give the most controversial answer ever and I'll receive many downvotes and might be banned from using this site. I'm from a small country in the middle east called Lebanon and I'm Christian so I'm not a terrorist according to the "American standard".
I believe that there's no such thing as terrorism, there's no such thing as right or wrong, if you look at the big picture.
We had a civil war that lasted from 1975 to 1990. We, the Christians had to defend ourselves from the Syrians and the Palestinians, and the Lebanese Muslims and the Druze. So what we did? We did what we had to do, that is killing everyone who stands in our way, including innocent people and children, we did thing that you cannot imagine, we wanted to make a statement, we wanted the enemy to fear us, otherwise he won't stop, fear is the most powerful human instinct.
We made a deal with the devil, we made a deal with Israel to stop the Syrians, Israel later invaded Lebanon, trust we'd definitely do this deal again if we were in a survival situation, the enemy of your enemy is your friend.
We even Killed each other, Christian militias went to war against each other, they were after the power.
Were we terrorists? Maybe, maybe. It's easy for you, sitting at your home, drinking hot chocolate to judge others. But what if I invaded your home, killed your entire family, what would you do? Would you call a lawyer? Would you seek justice? No, you would seek revenge - reckoning.
I don't even blame Bin Laden. I do hate him so much, because people like him killed Christians in my country back then and are doing so now in Syria. But I don't blame him.
Even in Syria now, no one is a terrorist, or maybe everyone is. Bashar Al Assad is killing all the Sunnis, AKA the revolution including civilians and children. But the Sunnis are killing everyone who is not a Sunni, (Christians, Shia, all) including civilians and children.
Part of me says that Bashar is a murderer killing little babies, the other part of me says the Sunnies are murderer too, they killed children too, priests, entire Christian Villages, don't believe CNN, the medias are liars, the Sunnis are no better than Bashar, so I came to the point where I just don't care about what happens in Syria. The US knows that, that's why they haven't sent any troops to stop Bashar, they realize that it's a mess, a killer is trying another killer, much like assassins the movie. It's a chess game, the US is waiting to see who's going to come on top in the middle game, before they make their move in the end game.
Real life is not a poem, where the pen is more powerful than the gun, get over it. I think Mandela did what he had to do, period.