My heart pours out to those effected by these cowardly acts. No ideas on how to stop them but each time this happens my thoughts get more and more hated towards these despicable exceptions to the human race. Some security measures may seem like a joke but it is better than doing nothing in my opinion. I think being vigilant is the most important thing for all of us, see something say something. Remember those in the recent California attack that didn't want to make a call for fear of being labeled anti Muslim.