The extreme movement of soybean prices first boosted grain prices, but ultimately pulled grains to lower closes as well. However, the grains were not traded in nearly the same heavy volume seen in the soy market. General Comments Fed Chairwoman Janet Yellen appeared before the Senate Banking Committee today, a session that was postponed on 13 February due to a threatening snowstorm. In her testimony, she acknowledged that economic data in recent weeks was weaker than expected, but there is no way to know how much of this might be caused by the bad winter weather. She also said that the Fed could slow its tapering down of the QE 3 stimulus program if necessary. Above all, she stressed that the Fed would maintain continuity with the policie...