The many sorrows of our recent history suggest that we humans have a learning disability.

Extinction is the rule. Survival is the exception.

Our purportedly advanced civilization may be changing the delicate ecological balance that has tortuously evolved over the 4-billion-year period of life on Earth.

Vast migrations of people -some voluntary, most not- have shaped the human condition. More of us flee from war, oppression and famine today than at any other time in human history.