Can you spot the difference between these pairs of pictures?
...First some easy ones...
Bishop Conry Bishop Egan
Edward Stourton Damian Thompson
A Catholic paper 'Nuff said
...These could be trickier...
St. Peter Pope Benedict
Pope Benedict Pope Benedict's Successor
Pope Benedict's Successor St. Peter
In principio Nunc
Nunc In Saecula Saeculorum
...which is why the Church doesn't change what she teaches.