If I said before, for this threat defense knowledge is really don’t know much, but now it is different, my threat defense knowledge is really learned a lot, I think the threat defense knowledge is really very useful, and I now have the knowledge to do it is of interest, as long as there is time, I will learn this knowledge, now we have a few friends get together when we say that most of the topic is the threat defense, I think this knowledge is really will use, so we now learn some really necessary to learn some more knowledge, and there will always be good.