Attorney General Eric Holder is defending the Justice Department against allegations of overreach after officials revealed that investigators had obtained phone records from the Associated Press. The unusual action is the latest in a year long investigation into a 2012 AP story that revealed details of a terrorist plot out of Yemen. Attorney General Eric Holder summed up the leak this way: "This was a very, very serious leak. It is within the top two or three most serious leaks that I have ever seen." Dina Temple-Raston talks to Audie Cornish.