The U.S. isn't going to default, right? Then again, it just might, and the very possibility has investors asking how to protect themselves. Reuters canvassed expert opinion for some options. No surprise to find gold getting a lot of mentions. The precious metal is a traditional haven, and this time may be no different. With spot prices nearly 30 percent off their 2012 highs gold also looks relatively cheap. Natixis head of commodities research Nic Brown:
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