Source:
YahooSEOUL, South Korea (AP) -- Leaders of the world's 20 major economies Friday refused to call on countries to stop undervaluing their currencies, leaving open a dispute between the U.S. and China that has raised the specter of a global trade war.
...
The dispute over currencies is threatening to resurrect destructive protectionist policies like those that worsened the Great Depression in the 1930s.
The biggest fear is that trade barriers will send the global economy back into recession. A law the United States passed in 1930 that raised tariffs on imports is widely thought to have deepened the Great Depression by stifling trade.
Read more:
http://finance.yahoo.com/news/G20-steers-clear-of-endorsing-apf-746192353.html?x=0&sec=topStories&pos=1&asset=&ccode=
Not looking good.