Why do terrorist attacks that kill a handful of Europeans command infinitely more American attention than do terrorist attacks that kill far larger numbers of Arabs? A terrorist attack that kills citizens of France or Belgium elicits from the United States heartfelt expressions of sympathy and solidarity. A terrorist attack that kills Egyptians or Iraqis elicits shrugs. Why the difference? To what extent does race provide the answer to that question?

Time and again-from the collapse of the Soviet Union to the events of 9/11 to the onset of the Arab Spring-events have caught the experts, whether in government or on the outside, completely by surprise. Business owners with comparable performance records go bust. Brokers lose their clients. Physicians get sued for malpractice. Yet think-tankers and policy wonks continue to opine, never pausing to reflect on-or apologize for-their spotty records.

I began to appreciate that authentic truth is never simple and that any version of truth handed down from on high - whether by presidents, prime ministers, or archbishops - is inherently suspect. The powerful, I came to see, reveal truth only to the extent that it suits them.

The United States military is undoubtedly the world's finest. It's also far and away the most generously funded, with policymakers offering U.S. troops no shortage of opportunities to practice their craft. So why doesn't this great military ever win anything? Or put another way, why in recent decades have those forces been unable to accomplish Washington's stated wartime objectives? Why has the now 15-year-old war on terror failed to result in even a single real success anywhere in the Greater Middle East?

If any overarching conclusion emerges from the Afghan and Iraq Wars (and from their Israeli equivalents), it's this: victory is a chimera.

Americans once believed that their prosperity and way of life depended on having assured access to Persian Gulf oil. Today, that is no longer the case. The United States is once more an oil exporter. Available and accessible reserves of oil and natural gas in North America are far greater than was once believed. Yet the assumption that the Persian Gulf still qualifies as crucial to American national security persists in Washington. Why?

For the majority of contemporary Americans, the essence of life, liberty, and the pursuit of happiness centers on a relentless personal quest to acquire, to consume, to indulge, and to shed whatever constraints might interfere with those endeavors.