we gil begin with michelle shepherd up in ottawa. give us a capsule of what happened today and how it fit in to recent fears we've had about terrorism on this continent. >> it certainly has been a fear that we will have attacks here in canada. i think no one felt ka da would be immune to this. also, we have become involved with the fight in syria and iraq, and that has really raised our profile. as you mentioned in the introduction, there have been calls for those who couldn't go over to fight in the name of the so-called islamic state to have attacks at home. and there have been fear among our security and intelligence services that particularly vulnerable were military personnel and targets. sadly, that's what happened this week, both with today's attack, the killing of the soldier, and also on monday there was an attack in quebec where another soldier was killed, struck by a car. >> do the canadian people see this as an intimidation to discourage them from joining the coalition against isis? >> you know, i think that's probably wh