As far as buy on the DIP. Sure, go for it. IMHO, I think the US gov. is lying out there arse, 1 known BSE cow. You will see, as time goes buy we will find out that BSE was in more than one cow in Washington and that the Beef did make it to selfs.
Hell, they still dont know how one contracts BSE. However, the risk is slim to none. But the FEAR that could set in, if even for a short period could cause a spike down in Cattle.