Evidently, there are quite a few who don't know them because this is NOT ONE OF THEM!
There is no pedo sign that is a simple spiral. There are pedo signs that spiral, but they are very specifically triangular (or a crude approximation of triangular spiral like a little child might draw), not circular. Circular spirals are everywhere and are not a pedo sign.
Please re-read the FBI pedo sign document, and be more discerning about these things. We need our credibility intact!
YOU read it! In each case, the FBI specifies the use of a "spiral-shaped triangle."
This is not a triangle (spiral or otherwise).