General Comments The recent decline in trade volume for the the December 2012 corn contract is probably indicative of traders' waning interest in expanding positions prior to USDA's 10 August WASDE. Large traders often recognize that it can be harder to get out of a large position when volume declines. So, if there is going to be profit taking, then it is likely to take place by the close next Wednesday. If so, trading action could become increasingly volatile for the next week as market participants square up their positions.Several days of selling could cause the recent price action in the December contract to look like the potential formation of a head-and-shoulders pattern. However, bullish traders with established long positions are...