In-depth look at Enbridge, its record & Straits of Mackinac pipeline

I'd posted a bit about this the other day, but here's a far more comprehensive piece about an aging oil pipeline running beneath the Great Lakes:

Oil and water: Searching for truth on the Mackinac pipeline

Note that this is the same firm which got an exemption from Dane County insurance requirements for  expanded Superior, WI to N. IL pipeline capacity tucked for the company's benefit into the recently-approved State of Wisconsin budget.