AI means Artificial Intelligence. It is developing rapidly for years. People make efforts to develop it, which makes  our lives better. However, is it really beneficial to us? What if it make us endangered… There is possible to be conquered by AI around the world. In fact, there is a news that a robot made by people said that we will destroy human. The robot was never programed to say such a thing. I think it is a terrible news, and it shows that we are in danger of AI clearly. We seek for something beneficial to us but it may destroy us! AI has a possibility to take us to a horrible situation. We should not make robots which has high intelligence too much. There are a lot of kind of robots(AI) who do something better than human. Today we depend on robots too much. Already, we have not needed human in various fields. We have to think about develop of AI seriously. Is it a really correct judge? Should we develop AI more and more? Both people who develop AI and who use AI have to think about the issue. We all have responsibilities for our future. I want to warn about it strongly.