Cadaver dogs are in Maui to help find the dead. Here’s how it works and why it’s difficult

​ Twisted metal. The carcases of burned sedans. Charred shells of what once were homes, thriving businesses and cultural landmarks. As Maui officials continue searching through the wreckage for the many who are still missing after wildfires tore through the island, they have a new tool at hand: human remains detection dogs, often called cadaver dogs.