I'm not an expert in the operation of pipelines or in assessing their condition. What I do understand about this file is that there have been some challenges and that they have been taken into consideration. Plans are in place to address the issues raised, and a new project can take over to ensure that this pipeline doesn't pose any particular danger to Americans, Michigan, the Great Lakes or Canada. While no means of transportation is safe, pipelines are a safe means of transportation.
Of course, you may need to make an energy transition, but you don't do it by shutting down pipelines, because there are already pipelines closing. That's a position I've held for a very long time. Ironically, the eventual closure of Line 5 could restart the Portland-Montreal pipeline, which runs from Maine to Montreal and is virtually unused. So just because a pipeline is closed one day doesn't mean there is an energy transition, because other options are available, such as tankers, old pipelines, rail and so on.
So environmentalists who think closing pipelines is a step towards energy transition are mistaken, in my opinion. It's a detour from the problem, which is really a problem of overconsumption of petroleum products in North America and Canada. That's the problem that needs to be addressed, not the pipelines themselves, which are merely a symptom of our current situation and consumption.