Keeping the world's longest railway tunnel safe | unmanned aerial vehicle, tunnel, Switzerland | Keeping the world's longest railway tunnel safe - The Gotthard Base Tunnel in Switzerland is 57km long: and
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Firing of Lac-Mégantic engineer ruled illegal, but Tom Harding won't be returning to work | CBC News
Scott Mann - MPs have been briefed about the problems with trains that have been reported in the media in the last few days. The problem stems from cracks that have appeared
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