Via the Washington Post:
Swelling populations and a global tide of immigration will present new security challenges for the United States by straining resources and stoking extremism and civil unrest in distant corners of the globe, CIA Director Michael V. Hayden said in a speech yesterday. The population surge could undermine the stability of some of the world’s most fragile states, especially in Africa, while in the West, governments will be forced to grapple with ever larger immigrant communities and deepening divisions over ethnicity and race, Hayden said. Hayden, speaking at Kansas State University, described the projected 33 percent growth in global population over the next 40 years as one of three significant trends that will alter the security landscape in the current century. By 2050, the number of humans on Earth is expected to rise from 6.7 billion to more than 9 billion, he said. “Most of that growth will occur in countries least able to sustain it, a situation that will likely fuel instability and extremism, both in those countries and beyond,” Hayden said.