Railways are essential to a country. The US government has nationalized railways, conducted many rounds of negotiations, and even suspended railways across the US. It is almost impossible to build another railway now. For example, if a high-speed railway is built in California, they will worry about the impact on the environment. If such a thing is done all over the US, there will undoubtedly be a lot of opposition. It might not be the best business, but it's definitely a very necessary presence. We hold the relevant railway business in a very tax-efficient manner. Buying BNSF is still a good investment.