A 17 year old high school kid next to where we live (Plano West High, TX) was arrested last week on terrorist plot charge. This school has a very big Chinese students population, and this kid looks like Chinese (last name isn't, may be half Chinese). What I want to say is if parents see something unusual going on with your kid, please talk to them. Don't wait, don't delay. Know what they are doing, learn how they feel, how they think. Give them guidance in this dangerous world at this very difficult time in human history.
God bless!