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In the US, even state and native governments can sell includes. Unlike federal bonds, these bonds have a higher rate of interest and the biology behind this is that these governments can go bankrupt. However, a federal government cannot go bankrupt. Bonds sold by state and local governments are free from income tax. The automobile corporations could possibly make vehicles that don't use gasoline. They have had the patents for very long time. The automobile corporations invested their profits into stocks of this oil and gas companies