Will Piper and Annette Pacas visit the grave of Annette's son, Alex, at Oak Hill Cemetery in Mount Carroll, Ill. Piper says he hopes to raise money to replace the makeshift, plastic marker with a permanent gravestone. John W. Poole/NPR hide caption

itoggle caption John W. Poole/NPR

Mine helmets and painted crosses were placed at the entrance to Massey Energy's Upper Big Branch coal mine as a memorial to the 29 miners killed there. Jeff Gentner/AP hide caption

itoggle caption Jeff Gentner/AP