It was two years ago that Typhoon Haiyan killed thousands of people in the Philippines, but it still haunts the CBC's Curt Petrovich today.

Last year's shooting on Parliament Hill shook Ottawa, and the entire country. The CBC's Louise Elliott was one of the first reporters on the scene. One year later, this is her Back Story.

What's it like to report from one of the worst rail disasters in Canadian history? Raw emotion and stories that never made it to air. Stephen Puddicombe's Back Story from Lac Mégantic.