Roger doesn’t express an opinion. He says we will need to find additional sources. But he doesn’t say anything suggesting an opinion about whether we can or cannot find an alternative energy source in the near future.

This is a point of agreement. Pauline believes electrical costs will skyrocket if the dams are breached. Roger believes we’ll have to find additional energy sources. This suggests they don’t think electricity demand will decrease significantly in the near future.

Not a point of agreement. Pauline doesn’t comment on what will happen if dams are not at optimal service. If dams are breached, electric costs will rise. But if dams are not breached, but still in service, we don’t know Pauline’s opinion.

Roger doesn’t express an opinion. He doesn’t comment on environmentalists and their view concerning saving the salmon.

Pauline doesn’t express an opinion. She doesn’t discuss finding additional energy sources and what that will do to electrical costs. She acknowledges electrical costs will skyrocket if the dam is breached. But that doesn’t indicate an opinion on other energy sources.