In last week's column we emphasized the distinction between ethics as a body of rules and principles and being ethical as a disposition to conform to those rules and principles. We noted that it is certainly possible to teach someone ethics, but it is a different task to lead someone to be ethical -- to internalize those principles and to be guided by them.

Soon it will be hard to buy an appliance that doesn't incorporate smart technology, but integrating appliances and systems may remain a challenge for a while. PJ Wade explores what you need to know about smart home technology.