Excerpt from a news broadcast.
    "Well, I found a strange black coin, and being a collector, I bought it. I was examining it to determine its provenance and was wishing that my apartment was quieter at night. The coin got warm suddenly and I dropped it. I still haven't found it but my apartment was quiet at night. I had no idea it was causing problems for everybody else in the building."...
    The zone of silence has disappeared for now...