Wolves.

This is coolbert:

Training exercise. That is all this is? Right? Gone awry but yes, just an exercise. Right?

"Canadian Armed Forces Try Out Black Propaganda on Nova Scotians"

"Forged letter warning about wolves on the loose was part of Canadian forces propaganda campaign"

"Black propaganda: is a form of propaganda intended to create the impression that it was created by those it is supposed to discredit."

"A letter from the Nova Scotia government sent out to residents to warn about a pack of wolves on the loose in the province…was forged by Canadian military personnel as part of a propaganda training mission that went off the rails."

"The training also involved using a loudspeaker to generate wolf sounds, the Canadian Forces confirmed to this newspaper."

"The fake letter was part of new skills being tested by the military as it hones its expertise for launching propaganda missions at home and abroad. The letter was developed by information warfare specialists with the Halifax Rifles, a reserve unit."

TO WHAT EXTENT THE "EXERCISE" WAS SUCCESSFUL IS NOT MENTIONED. WHAT PERCENTAGE OF THE NOVA SCOTIA POPULATION DID  BELIEVE A PACK OF WOLVES WAS LOOSE IN THE PROVINCE MIGHT NEVER BE KNOWN WITH ANY DEGREE OF CERTAINTY.

Messing with the minds of the public even if in the context of a military training exercise is fraught with danger? 

coolbert.