Grain and soybean futures markets seem to have hit something of a vacuum. They have lost direction, at least temporarily, and they have become rather dull of late. That is, if $8.00 corn and $17.00 soybeans in the midst of an historic drought that has brought on the worst U.S. crop losses in decades can be called dull.Markets respond to emotion, and the collective emotions of market participants can remain at a peak only so long before the edge is rubbed off and they become tiresome. It seems to us that markets have reached this stage. Markets have been trading on fears that the drought accompanied by an intense heat wave might have disastrous consequences for crops since early July. As it became clear that those fears were being realized...