Well, the benefits to foreign trade is that we can get products for extremely cheap, mostly because in Taiwan, China, Africa, et al., they have children, geriatrics, and poor people make these products. They don't need to pay them much, perhaps a buck an hour or so. So then we buy these products for extremely cheap. Take fruit, for example. Bananas are like 39 cents a pound. How are they so cheap? It's mostly because of extremely poor foreign workers.As for the disadvantages, well... we lose jobs that we could keep here. We could be paying American workers to do these things, which would keep the money here in America.As for why it is better to keep trading, I don't know.