WUOMFM

Detroit Public Television

Title screen of 'Beneath the Surface.'
Detroit Public Television

The Keystone XL and Dakota Access pipelines have made national headlines, but could Enbridge's Line 5 under the Straits of Mackinac pose the biggest environmental risk of all?

That's the question posed by a documentary airing tonight on Detroit Public Television.

It's called "Beneath the Surface: The Line 5 Pipeline in the Great Lakes."