Looking back, it can seem easy to explore how things might have been done differently or better.

Weband so warning signs often go ignored, red flags unheralded.

But the official disaster response.

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Webcomplaints were being made about the intersection from truck drivers, car drivers, trucking companies, pedestrians, cyclists, cycling groups and yet none of them were acted upon.

Webbut the official disaster response plan obtained exclusively by abc news shows that everyone was forewarned, in strikingly chilling detail, about what would.

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