General Comments Helped along by yesterday's bearish WASDE, trader sentiment has rapidly shifted from concern about late planting to the assumption that "rain makes grain," and anticipation of rapidly building U.S. stocks of corn and soybeans. Although it is less talked about, the assumption that the world will not need increased U.S. production in 2013/14 could be added to the list. What a difference a year makes!The bearish case was helped further by a Goldman Sachs research memo in which, to paraphrase, it foresees corn prices falling to at least $4.75 and possibly to $4.25. Soybean prices are headed to $11.00 with $10.00 a distinct possibility. The corn price prediction is at least $0.75 lower than Goldman's May advisory, and the soy...