http://www.dailymail.co.uk/news/article-2354175/United-States-decay-Images-forgotten-America-ruins-20th-century-left-abandoned-New-York-north-eastern-states.html
And if we had no government to stop us we could come back better than ever before. In some places they are trying, though I don't know how long it will be allowed to go on. Guerrilla farming, and such. Detroit is a place where urban farms are springing up, but will the government come down on it? If left to ourselves, we could do so much better. But people who try to make the world a better place end up in jail for it, here. Can't rock the status quo, and it's the u.s. government's primary function to make the majority of its citizens as miserable as possible, if not destroy them.
Go to my sources. I'm probably not going to guide you to too many links today. Unless I change my mind, that is.