Depending on your perspective, the Gulf oil spill is many things: a reminder of human fallibility, an indictment of corporate greed, a painful example of government regulatory failure, a portrait of the power of big money in politics, a wake-up call about our continuing addiction to cheap oil. Arguably, it is proof that America has become very good at making what we once imagined as rare accidents, "black swans" in the parlance of Wall Street, into high probability events. Assuming you've been paying attention to the news, by now you probably think it is some combination of all of those things.