...but throwing out the baby with the bathwater is just bad diplomacy. Personally, I'd judge economic exchange between China and South Korea to be a good step in isolating North Korea even further.
We need to stop currency manipulation through the WTO. Globalization is here to stay. It's how we deal with it that matters. I'd rather have a basis in the agreements to work from than no agreements at all leading to enmity and dissolution.
Woodrow Wilson made a drastic lowering of tariff rates a major priority for his presidency. The 1913 Underwood Tariff cut rates, but the coming of World War I in 1914 radically revised trade patterns. Reduced trade and, especially, the new revenues generated by the federal income tax made tariffs much less important in terms of economic impact and political rhetoric. When the Republicans regained power after the war they restored the usual high rates, with the Fordney-McCumber Tariff of 1922. When the Great Depression hit, international trade shrank drastically. The crisis baffled the GOP, and it unwisely tried its magic one last time in the Smoot-Hawley Tariff Act of 1930. This time it backfired, as Canada, Britain, Germany, France and other industrial countries retaliated with their own tariffs and special, bilateral trade deals. American imports and exports both went into a tailspin. Franklin D. Roosevelt and the New Dealers made promises about lowering tariffs on a reciprocal country-by-country basis (which they did), hoping this would expand foreign trade (which it did not.) Frustrated, they gave much more attention to domestic remedies for the depression; by 1936 the tariff issue had faded from politics, and the revenue it raised was small.
http://en.wikipedia.org/wiki/Tariff_in_American_history#1913_to_presentTrade wars are lose-lose. We ought to be asking why the United States is not able to compete within a global economy and take steps to remedy it through investment in education, research and development, and internationalism. That's how we prosper in the 21st century. Not through a crude 19th-20th century approach to the problem by restricting trade and encouraging retaliation.
We disagree, that's okay, reasonable people can have reasonable disagreements.