The article poses the question, "Is it ethical for casinos to gather so much information?" I think it is ethical as long as the customers are aware. I don't think it is fair to monitor someone's phone calls during their stay at the hotel if the person doesn't know about it. I think it should become common knowledge that you consent to sharing personal information when you enter the casino. I would feel violated if I found out my license plate number, phone calls and facial features were not just recorded but being shared with other casinos.
However, if the customer is aware, then I think it is completely fine to monitor their activity. It obviously works, considering Las Vegas' crime rate is so low. The people going to casinos no perfectly well that there are cheaters there, and if you aren't breaking any rules, than why would you be worried? It is hard to say it is ethical to invade someone's privacy to this extent to improve Homeland Security. Airplanes, taxes, credit cards and drivers' licenses are American necessities, it isn't fair to monitor someone just for living, these are all unavoidable. Where as if you have a problem with being watched in casinos you can avoid it by not going to them. How do you avoid being monitored by the government? You honestly can't. I understand that it would be helpful but in this case I don't think it is worth it.