At least he was confronted immediately. Can you imagine if this was used against him at some time in the future as a "pattern of suspicious activity"? Or worse

At least he was confronted immediately. Can you imagine if this was used against him at some time in the future as a "pattern of suspicious activity"? Or worse if he was selected via data-mining when looking for suspects of a bombing? It's like finding secret messages in every eight words of the Bible.