title: Magento: Adding a custom block to "Payment Information" when viewing an order in admin
body: <p>I am working with Magento version 1.7.0.2. I have been trying to figure out the best way to add some additional payment information to the "Payment Information" section when viewing an order in the admin. For example I'd like to add the expiration date of the credit card that was processed (similar to how it would appear for a saved CC method).</p>
  
  <p>I do not wish to override Mage/Payment/Block/Info/Cc.php because then the changes would appear in other undesired places as well (like in sales emails for example).</p>
  
  <p>Thanks for taking the time to read my question!</p>