Nobel prize-winning economist Joseph Stiglitz writes about the fact that the top 1% of wealthy people in the US now rule the country and are ruining it.

It’s no use pretending that what has obviously happened has not in fact happened. The upper 1 percent of Americans are now taking in nearly a quarter of the nation’s income every year. In terms of wealth rather than income, the top 1 percent control 40 percent. Their lot in life has improved considerably. Twenty-five years ago, the corresponding figures were 12 percent and 33 percent. One response might be to celebrate the ingenuity and drive that brought good fortune to these people, and to contend that a rising tide lifts all boats. That response would be misguided. While the top 1 percent have seen their incomes rise 18 percent over the past decade, those in the middle have actually seen their incomes fall.
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Virtually all U.S. senators, and most of the representatives in the House, are members of the top 1 percent when they arrive, are kept in office by money from the top 1 percent, and know that if they serve the top 1 percent well they will be rewarded by the top 1 percent when they leave office. By and large, the key executive-branch policymakers on trade and economic policy also come from the top 1 percent. When pharmaceutical companies receive a trillion-dollar gift—through legislation prohibiting the government, the largest buyer of drugs, from bargaining over price—it should not come as cause for wonder. It should not make jaws drop that a tax bill cannot emerge from Congress unless big tax cuts are put in place for the wealthy. Given the power of the top 1 percent, this is the way you would expect the system to work.
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In recent weeks we have watched people taking to the streets by the millions to protest political, economic, and social conditions in the oppressive societies they inhabit. Governments have been toppled in Egypt and Tunisia. Protests have erupted in Libya, Yemen, and Bahrain. The ruling families elsewhere in the region look on nervously from their air-conditioned penthouses—will they be next? They are right to worry. These are societies where a minuscule fraction of the population—less than 1 percent—controls the lion’s share of the wealth; where wealth is a main determinant of power; where entrenched corruption of one sort or another is a way of life; and where the wealthiest often stand actively in the way of policies that would improve life for people in general.

As we gaze out at the popular fervor in the streets, one question to ask ourselves is this: When will it come to America? In important ways, our own country has become like one of these distant, troubled places.
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The top 1 percent have the best houses, the best educations, the best doctors, and the best lifestyles, but there is one thing that money doesn’t seem to have bought: an understanding that their fate is bound up with how the other 99 percent live. Throughout history, this is something that the top 1 percent eventually do learn. Too late.

Note that he does not ask if this state of affairs will cause riots in the streets in America like those occurring elsewhere in the world but when.

It is worth reading the whole thing.