Below is a link to the fact sheet that the Wireless Industry does not want the City and County of San Francisco to show you (see page 2). I have appended annotated comments that verify it is indeed factual.
The fact sheet was approved by the Federal district court judge, but then the CTIA appealed the case to a higher court.
The fact sheet is the basis for the CTIA's current lawsuit against SF. The industry has claimed if retailers were forced to distribute it, this could cause confusion and panic among consumers.
You can decide for yourself whether the industry is right.