Physicist and former Nasa astronaut, Dr. Ed Lu, discusses the possible threat that near-Earth asteroids pose to our planet. Lu claims there is a 30% chance of a five mega tonne impact happening this century. He says technologies exist that may prevent impacts to Earth, but without years of advance notice there would be 'no option'.
Scientists living under an oppressive regime
decide to clinically study the founders and supporters of evil regimes to determine what common factor is at play in the rise and propagation of man's inhumanity to man.