Technician Jonathan Miller applies protective wax as part of regular conservation work on the Liberty Bell at Independence National Historical Park Thursday, June 7, 2012, in Philadelphia. (AP ... more 
Technician Jonathan Miller applies protective wax as part of regular conservation work on the Liberty Bell at Independence National Historical Park Thursday, June 7, 2012, in Philadelphia. (AP Photo/Matt Rourke) less 
1 / 6
Associated Press | Photo By Matt Rourke
Thu, Jun 7, 2012 10:36 AM EDT