some info on the Yahoo finance face page. I'm guessing tariffs are no free lunch though.

"In March 2002, President George W. Bush imposed a 30% tariff on Chinese steel. The results were chaotic. In a report put out by Consuming Industries Trade Action Coalition in February of that year, the coalition found the tariffs against China boosted the overall prices of steel and cost the U.S. 200,000 jobs in businesses that buy steel, representing $4 billion.

In another recent situation, in September 2009, President Obama imposed a three-year tariff on car tires from China. Chinese imports went down, but the tires were simply sourced from other countries, the LA Times noted. According to the Peterson Institute for International Economics, 1,200 tire jobs were saved in the U.S., but through costs passed along to American consumers, 2,500 jobs were lost indirectly.

In Bush’s case, seven months after the tariffs were imposed more American jobs had been lost than Americans employed by domestic steel producers. Writing about the trickling effect of trying to help a certain domestic industry, CITAC noted: “In making policy for the revitalization of manufacturing, including the steel industry, our conclusions suggest that the effects across the full industrial spectrum should be considered.”