Do we need a bridge between the island and the mainland?

Every once in a while, frustrated ferry users bring up the idea of a “fixed link” - a bridge or tunnel that would permanently connect Vancouver Island to the rest of B.C. It happened this week when stormy weather led to nearly a hundred sailing cancellations just before Christmas. It also came up this summer, as discussions dragged on about the new ships that B.C. Ferries ordered from a shipyard in China. So this week, a repeat of our July 17 episode: do we need a bridge or tunnel? What it take to build one?