You get more churches burned down in the United States in the last two years than in the last hundred, because of the lack of understanding of culture and diversity and the beauty of it.
I believe that Gandhi was correct. Non-violent civil disobedience is the only way to bring about change that allows people to enjoy the change and not get killed in the process.
There are nuclear weapons in China, Iran, Korea and Pakistan. It wouldn't take much to send a couple of warheads off on this planet somewhere that would cause a lot of environmental damage, then if you have got someone who wants to retaliate you have real problems.