I realized yesterday afternoon that it's St. Patrick's Day today, and I thought it would be appropriate for my daughter, Jessica, to be a guest today. She lives in Northern Ireland, and can offer some insights into how the holiday is celebrated over there. I thank her profusely for stepping in with a post with virtually no warning. Welcome, Jessica!

Yes, as you might expect, there is a bit of a political problem with the event. You will always have a small minority of people out there trying to prove some point by being disruptive. However, the police expect that and for the most part, the big celebrations go off without a hitch. I have a few friends who make a habit of trying to catch any "misbehavior" on film, as I know many amateur photographers.