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We remember watching a documentary on Boston's Big Dig on the Discovery Channel a few years back, and we have to say, we were pretty amazed by the scope of the project. We're even more amazed by the apparent shoddy construction of at least three tunnels. The underground carriageway that collapsed on Tuesday apparently has 60 other signs of potential failure, and an undisclosed number of problems were found with two adjacent structures. Bostonians, thank your lucky stars you don't suffer from random and sudden plate-tectonic-induced adventures.

FIVE THINGS: About cars and tunnels [Detroit Free Press]

Wicked Breaking News! When Tunnels Attack: Boston's Big Dig Kills Woman [Internal]