In your latest column in TASC (October, page 48), the first letter, second paragraph, says: "Next, I saw a short-seller (150,000) stepping down. I was about to bid out . . ." The letter, and your answer, say nothing about the trader's software, feeds, etc. And your answer says nothing to indicate that the trader misinterpreted whatever it was that he saw. So how was this trader able to tell? I'm trying to figure a way to recognize short-sales when I'm looking at EOD T&S. (Of course, it would be even more useful to know what to look for in L-I/II, etc.) Thanks.