Insufficient brake force blamed in Canada crash
Donald Ross, chief investigator for the Transportation Safety Board of Canada, said Friday the insufficient brake force could be due to mechanical problems with the handbrakes, or a problem with the way someone applied them.
The unmanned train belonging to the Montreal, Maine & Atlantic railway carrying 72 cars of crude oil slammed into the heart of Lac-Megantic, setting off massive explosions.
A spokesman for the agency says it's had a closer look at 25 tanker cars since gaining access to the blast site two days ago -- and has taken pictures and samples.
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