Identifying victims after a disaster can offer closure to loved ones. AP Photo/Jae C. HongFire devastates communities and families, and it makes identification of victims challenging. In the aftermath of the wildfire that swept through Lahaina, Hawaii, officials are collecting DNA samples from relatives of missing persons in the hope that this can aid in identifying those who died in the fire. But how well does DNA hold up under such extreme conditions, and what is the best way to recover DNA fr