The government has also pledged to take action to avoid a repeat of what happened this week at a memorial service for Nelson Mandela. The man who was on stage to do sign language interpretation made only meaningless gestures, say members of the nation's deaf community.
Few people have homes where smart appliances talk to each other. A group of companies hopes to develop a "common language" of software to change that. And the firms hope an open standard will address potential security and privacy issues that are bound to arise.
One reason North Korean leader Kim Jong Un had his uncle executed, some analysts say, is that he felt disrespected. The uncle, Jang Song Thaek, allegedly failed to applaud with enough enthusiasm when Kim was given a key post. It's also thought that Kim wanted to send a message: Don't mess with me.