You have to have a government to provide you with legal order, with stability, enforcement of property rights, enforcement of contracts, definition of rules and regulations - the rules of the game, so to speak - and to provide certain shared goods and services, public services. Several people have tried to estimate this and they come out with figures like government spending at 15% of GDP. In the modern world it has gone to 40% or above. So we are way beyond the optimal, and that is easier to say than what the optimum is.

I think the world has changed dramatically since September 11th. It should force us to recognize that we are going to have to defend the free institutions of our society against those who are simply not willing to belong to a civil order.

America is perhaps excessively mobile in the sense that there is sometimes not enough stability in communities. Dynamism in the economy is not necessarily the "be all and end all".

How would the US be different today if people coming off the boat were greeted with a welfare check instead of a shovel?

Liberals have lost the soul. We haven't recognized the necessity of defending our own system at the level of ideas. We have to get people to treat the idea of a free society as a civic religion or a faith. We need to fight for that faith.

If you have an area where high-income receivers concentrate, you have a higher fiscal capacity. That fiscal capacity is a valuable resource and will create rent-seeking. People will trying to get that resource one way or the other, including immigration. It is very much like the medieval peasants putting their sheep on the commons pasture. It is better than the open range, and if you let them have open access they will, in fact, put too many sheep on the pasture and waste the value that the pasture has.

We try to prevent the creation of artificial rents. Rather than setting up quotas to stop imports we levy a tariff, that would be better. Or we pay wages in the public sector which are roughly equivalent to the productivity in the private sector and we don't therefore make it a special benefit to get a bureaucratic position.