Sex trafficking could spike near Enbridge pipeline project, Minnesota warns Native women particularly vulnerable to trafficking as Enbridge builds new Line 3. January 8, 2021 — 9:23pm Text size Copy shortlink: DULUTH – Among the thousands of pages of documents filed in the Enbridge Line 3 permitting process, state regulators made a striking conclusion about construction on the pipeline: "The addition of a temporary, cash-rich workforce increases the likelihood that sex trafficking or sexual abuse will occur." Advocates, law enforcement, the company and unions are working to ensure that isn't the case as work on the $2.6 billion pipeline across northern Minnesota enters its second month of construction.