Extinction Effect - Robert Wright - Bog

Humans went out of their way to massacre their fellow man over differences in the color of skin, religion, and politics. We were supposed to be the generation that saved the planet and humanity for ourselves and our children. Unfortunately, we were never given the chance.Envious eyes looked upon Earth from our nearest neighbor, Alpha Centauri. Eyes that had decided we weren't killing ourselves off fast enough. Eyes that had taken matters into their own hands on the day they tried to kill humanity. They miscalculated . . . Fifteen-year-old Tanya's life was turned upside down on "The Day". Now, she's found a reason to fight but will she win?