Bacteria trained to eat glue saving Spanish frescoes

The glue was used during an earlier, botched restoration attempt and had left the ceiling of Valencia's Saints Johns Church pitted with dark spots. A mother and daughter team - the mom is an art restorer, and the daughter is a microbiologist - are getting the glue off and restoring an iconic ceiling nearly lost to fire some 90 years ago. The World's Gerry Hadden reports from Valencia, Spain.