From https://en.wikipedia.org/wiki/United_States_military_nuclear_incident_terminology#Broken_Arrow https://en.wikipedia.org/wiki/United_States_military_nuclear

From https://en.wikipedia.org/wiki/United_States_military_nuclear_incident_terminology#Broken_Arrow https://en.wikipedia.org/wiki/United_States_military_nuclear... : "Broken Arrow refers to an accidental event that involves nuclear weapons, warheads or components which does not create the risk of nuclear war." It usually means lost nuclear weapons. The title is editorialized and should be changed to the original article title: "Canadian army interested in old nuke that may have been found off Haida Gwaii"