The solution, as it always has been, is political and educational. A fully-rounded education is essential to creating minds that use all sources of information

The solution, as it always has been, is political and educational. A fully-rounded education is essential to creating minds that use all sources of information - historical, statistical, philosophical, religious, etc - as data fed to a critical thinking machine (your brain). And politics must be of a nature that the best conclusions are elevated while the worst are discouraged. There will always be people who will build weapons, and those weapons can always be used on innocent people. The only hope we have is that the people holding the weapons will have the right environment and presence of mind, and we can only do that through culture and education.