I always try to see the positive side of life, but I also think it is important to make people aware of any potential dangers to health and major cases of injustice (and insanity).
It is really important for you to educate yourself as to what is going on the world and what you are putting in your bodies. For this reason, I urge you to watch this 5-part video. It amazes me that there are people on this planet who can do things like this.