I was in a class for CHL instructors a couple of months back. During the class the trooper from the Department of Public Safet that was teaching the class asked a question. He wanted to know what we feared the most. He said that his biggest fear was the active shooter. The kind of person that walks into a mall, church, school etc. armed to the teeth not carring if he is killed or not with the intent to kill as many people as he could. The trooper said that we should consider ahead of time what and how we would react to that situation. Thinking about this I wonder what each of us on this site worry about encountering and how do you prepare for it.