Expert: CIA missed glaring red flags

Amman, Jordan  - In the murky world of spying, where choices are generally among shades of gray, success, by definition, goes unnoticed. Failure, however, is catastrophic.

So how did a Jordanian doctor play double agent, outsmart his CIA handlers, and end up killing seven Americans and a Jordanian military officer at a remote base in Afghanistan?

Read the full story from CNN's Nic Robertson