I am often asked what keeps me awake at night after nearly 40 years as a Navy officer, including four years as supreme allied commander for global operations at NATO. There is no shortage of frightening issues: Iran, North Korea, the insurgency in Afghanistan, civil war in Syria , cyberthreats , chemical weapons, terrorism.

But my one-word answer may surprise: convergence.

Convergence may be thought of as the dark side of globalization. It is the merger of a wide variety of mobile human activities, each of which is individually dangerous and whose sum represents a far greater threat.

The most obvious example of this kind of convergence is narco-terrorism.…  Seguir leyendo »