On Sept. 11, 2001, in the eyes of most Americans, Canada's geography
underwent a radical transformation. Once a strategic asset providing
depth of warning and response to Russian missiles, our vast territory
became a serious security liability. Overnight, 8,000 kilometres of
“undefended” border were seen to provide a gateway for terrorist actions
against the U.S. homeland. Written by Michael Kergin and published in
the Globe and Mail.