I have degree in International Relations, but I have a job which has nothng to do with politics. So I am a bit rusty, I want to review and do research on my own

Despite Y2K panic at the beginning of the decade, the first ten years of the new millennium proved that our fellow humans are much more dangerous than malfunctioning machines. Unprecedented terrorist attacks on American soil, followed by subsequent attacks around the world punctuated the 2000s. Climate change and unparalleled natural disasters killed hundreds of thousands. Not to mention the globa…