General Comments Buoyed by news that Greece's bond swap offer had almost 86 percent participation, which was much better than expected, markets were firm in the evening session. That gave world financial markets a lift. There was also some buying ahead of this morning's USDA report, although most of that buying was again centered in soybeans. The USDA reports did not provide much grist for the markets with few changes in the U.S. ending supply numbers while the South American production estimates were mostly in line with expectations.The markets quickly forgot about the USDA report and instead took note of another round of corn and soybean export sales plus strong rumors that private companies in China were again looking at U.S. corn. Th...