If you are concerned with the possibility of someone trespassing on your property because of your "letters to the editor", I would suggest you post "No Trespassing" signs. There is no reason to even confront them at that point. Call 911 and let the police handle it. If you have reasonable fear for your property and or life, then you need to consider the consequences. Keep in mind if you appear with a gun without provocation, you will likely be considered the aggressor. Only a fool uses "stand your ground" as a reason to escalate a situation which might otherwise be settled peacefully. A shooting is never a good outcome, even if you are in the right. You must live with your decision. Be aware, but don't become paranoid. Just my two cents.