In a matter like this...

... who are the good guys and bad guys or even heroes and villains, do such terms in these case scenarios even apply?

And as wrong as the terrorists ultimately are for killing and hurting innocent civilians, are the governments then more evil for declaring wars or is it not that simple?

Also - why do these terrorists, if they believe so much that what they do is either "right" or "in revenge for the bigger wrong that was brought on them" by US government and military forces, why do they care so much about bringing "Allah" and religion into the mix, because they are also evil too and want to use religion as a justification? And why is their religious upbringing and religious beliefs THIS important in deciding whether or not to carry out their terrorist plans?

And as horrible and wrong as torture is period, in a matter like this, where millions of lives were at stake, was it in any way even remotely "understandable" and "justifiable" if it would save millions of innocent lives from nuclear weapons?

Anyone know, thanks.

P.S. On related note, even in say 2003 Iraq war, many people say George W Bush and UK Prime Minister Tony Blair were incredibly wrong to invade it and that this decision makes them monstrous murderers of innocents and major war criminals in need of life imprisonment from The Hague or Nuremberg like trials.

But then, Saddam Hussein, who was the leader of Iraq at the time, was also a major mass murderer of millions and ruled Iraq with iron fist and was involved in major human rights violations, even if the WMD issue turned out to be false, so he is, to put it politely, not a good person either, but still... Bush and Blair, who decided to remove him, turned out to be the evil culprits.

Who are the "good guys" and who are the "bad guys" then in this scenario?

What about other wars including Russia and Chechnya? And historical past? Are both political parties evil monsters then?