Be opposed.
Who could be opposed to locating it...
Answer:
The line from the excerpt that is an example of objective language is "In the course of the construction of the Bridge a number of lives have been lost."
Explanation:
The sentence selected includes real and reliable data about a fact, this is one of the main characteristics of the sentences than use objective language, even when there are moments in the rest of the excerpt that the information contains a point of view or perspective coming from the writer it is not the case of this sentence which makes it clear direct and objective.
No, I don't think it is a rhetorical device
Clarifier/elaborator because this person could help other people understand different viewpoints by clarifying them and making it easier.