Focus: 10-year yield, U.S. dollar, euro, gold, rate-related cross currents The major U.S. benchmarks are challenging significant support with this week’s downturn. Most notably, the S&P 500 is retesting its former range top — a level matching the 50-day moving average — and this area remains an intermediate-term bull-bear inflection point. http://www.marketwatch.com/story/sp-500-teeters-on-major-tec...