We are at a pivotal moment in history. The world is watching. All eyes are on America.On November 8, Americans will elect a new president and, by default, the next leader of the free world - America is the principal superpower in an alliance of free (or democratic) nations. The next US president will preside over critical decisions that will affect America and the world at large. Either Donald Trump or Hillary Clinton will become president. Who will it be?Americans face an unprecedented responsibility because the positions of the two candidates vying for the top job are poles apart - they couldn't be more diverse. As such, the wrong choice could have catastrophic consequences.