Three years ago, floodwaters engulfed Iowa and swept hundreds of pigs down the Mississippi River, sparking a rescue effort that moved over 60 survivors to new lives on sanctuaries. Last week Iowa's levees burst again, and its pigs took the national spotlight once more, to tell a different story. A hard-to-watch undercover video from the Ohio-based group Mercy for Animals (MFA) was released on June 29, showing live piglets getting sliced, slammed and thrown across a building in a small Iowa town.