A decent question to ask in this case; “Who planned this?” The ones who did the deed are obvious but did they do it on their own volition? These banners were designed and sized exactly for these conditions and place. If it was somebody currently beyond Peru’s borders, I’d want that person to voluntarily repatriate themselves to Peru to “Face the Music!” There is a tale that wags this dog and everybody concerned should take appropriate responsibility.
Add this up. This required four Greenpeace idiots to fly in (figure $9k for round-trip tickets), a couple of days in a hotel there ($1500). Meals ($700), and a jeep to get out there ($400 for rental and fuel). Someone had to approve the budget expenditure and allow the money to be spent out of the general fund. Whoever signed the expenditure....needs to be let go.