The US has exported the part of industry that makes actual machines, clothing, chemicals, steel and some other products to a virtual empire. These industrial colonies get all the disadvantages of the resulting pollution and can be attacked by the Pentagon at will, but the US has no responsibility for their well-being. So they are a plausibly-deniable extension of our country.

What remains of actual US manufacturing is trucks, food (since it's become too unnatural to be called anything but a manufacture), refining (though we've begun to import a lot of gasoline), and houses. I'm not thrilled.