What's next in aftermath of Iran plane crash that killed dozens of Canadians

A day after Prime Minister Justin Trudeau said a plane that crashed and killed 176 people, including 63 Canadians, was likely shot down by a missile, Iran is denying that theory. Dave is joined from Ottawa by National Post reporter Ryan Tumilty who explains why investigating the crash will be especially challenging, given the lack of any diplomatic relationship between Canada and Iran. Learn more about your ad choices. Visit megaphone.fm/adchoices