Canada and Ballistic Missile Defence, 1954-2009Since the mid 1950s, successive Canadian governments have grappled with the issue of Canadas role in US ballistic missile defence programs. Until Paul Martins government finally said no, policy makers responded to US initiatives with fear and uncertainty as they endlessly debated the implications at home and abroad of participation. However, whether this is the end of the story remains to be seen. Drawing on previously classified government documents