This is what I was thinking, but then I got downvoted to hell. Understandable, there are innocent civilians and children around - most brainwashed by ISIS. But, it looks like these training camps seem to stay close to the river - as seen in the Vice documentary, "The Islamic State" https://www.youtube.com/watch?v=jzCAPJDAnQA#t=160
It would indeed be the perfect weapon for a terrorist. Just post a picture of something on the Internet and have foreign military blast it to the ground. Create terror and blame americans, and anyone can do it.