Shanghai, Shenzhen markets to get circuit breaker ReutersEmployees assemble an electric car at a factory in Shandong province. Chinese trade data disappointed Tuesday. Japanese stocks fell to a seven-month low with the Nikkei Stock Average giving up its gains for the year, after weak Chinese trade data stoked concerns about a further slowdown in the world’s second-largest economy. http://www.marketwatch.com/story/china-stocks-volatile-after...