In September 2018 the National Museum in Rio de Janeiro burned to the ground, leading to the destruction of artifacts and archives.
In January 2019, I was invited to discuss the issue of archival fragility in Latin America at a round table at the AHA out of which came this podcast for the American Historical Review.
https://www.theguardian.com/world/2018/sep/03/fire-engulfs-brazil-national-museum-rio