The US Coast Guard has asked QRZ to help on a cold case to track down a radio pirate who was responsible for a hoax that caused a large scale mobilization. They have provided us a recording of the traffic so that perhaps one of us might recognize the voice behind the microphone. We have an audio file on QRZ that you can examine at http://files.qrz.com/news/USCG_traffic.wav Here is the text of their request to the QRZ community: The US Coast Guard is looking for the person responsible for several hoax calls made around the United States on a VHF marine band radio. The attached audio was recorded in New York City on June 11, 2012. Please DO NOT email us with motives, theories or stories regarding other hoaxes. While we appreciate your insight, our goal here is only to identify the caller. If you recognize and can identify the voice on this call, please email CGISNE-WEB@USCG.MIL and provide your best contact information so investigators can contact you directly. Thank you. Note: if you have a suspicion of a person who might be responsible for this crime, please DO NOT SHARE THE PERSON'S NAME OR CALLSIGN HERE ON QRZ. Instead, contact the email address provided above.