I ran across this flyer stuck to various poles outside the Moscone Center. You have to see the photo to believe it (I love the little Portal-style warning icons):

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ALERT: BE AWARE!

Evidence of Microwave Harassment Emanations In This Area

Irradiation of Signals of < 600 MHz Voice Modulated Electro Magnetics Upon Biological Subordinates
Auditory Perception of Pulsed Signals Aka "Synthetic Telepathy"

M.K. Ops On Urban Pops Covert Mind/Body Control

SUPPRESSION OF NATURAL STATES OF DIVINE NONCHALANCE CAUSING NORMALCY AND OTHER DISABILITIES

PUBLIC FOREWARNING ACCORDING TO RESEARCH SURVEY NON02B

Elsewhere Public Works, 1 (888) 717-7517

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I'm slightly tempted to try calling the 1-888 number, but not tempted enough to actually do it