Charlotte Tammel, principal of Cora B. Darling Elementary and Middle School, stands in front of a world map in the hallway at the school, March 16, 2007, in Postville, Iowa. Agriprocessors Inc., the biggest kosher slaughterhouse in the world, has drawn a diverse mix of nationalities, religions and cultures to this small northeastern Iowa town. (AP Photo/Charlie Neibergall)