Here are the latest items and commentary on current economics news, market trends, stocks, investing opportunities, and the precious metals markets. We also cover hedges, derivatives, and obscura. And it bears mention that most of these items are from the “tangibles heavy” contrarian perspective of JWR. (SurvivalBlog’s Founder and Senior Editor.) Today’s focus is on investing in registered Class 3 machineguns. (See the Tangibles Investing section, near the end of this column.) Precious Metals: Gold Prices Will Be ‘Explosive,’ Just Wait and See – Jim Rogers o o o As of July 31st, the trend line for spot silver is …