STEPHEN FRAZIER, CNN ANCHOR: Now, the other big story of the day, the FBI getting down to business in a bid to overcome what it says is "exceptionally grave" damage done by an alleged spy. One day after FBI special agent Robert Philip Hanssen was charged with spying for Moscow during the past 15 years, the agency is now asking the simple but difficult questions: How did this happen and why? The 25-year veteran was arrested near his Virginia home on Sunday. Hanssen was posted at the State Department from 1995 until January of last year. And that's where our State Department correspondent Andrea Koppel picks up the story from there -- Andrea.</s>ANDREA KOPPEL, CNN CORRESPONDENT: Stephen, to his friends and colleagues here at the State Department, Robert Hanssen was known as the FBI's liaison to the Office of Foreign Mission. Essentially that means that it was Hanssen's responsibility as an agent trained in counterintelligence to keep tabs on those diplomats that the United States believes were operating in the United States as intelligence officers, as spies. Well, now that the cat's out of the bag and Hanssen's cover as an alleged spy has been blown, the FBI is here in the State Department today speaking and interviewing, debriefing some of Hanssen's colleagues and friends, trying to find out in particular in one instance whether or not Hanssen himself may not have been linked to a case that dates back to 1999, when the FBI arrested a Russian spy, who was working as a diplomat here in Washington right outside the State Department. Back to you, Stephen.</s>FRAZIER: Andrea, thank you very much. There's more on this now, The FBI's extensive affidavit on this case contains numerous letters Hanssen allegedly wrote to officials in Moscow. One which the FBI says Hanssen wrote on or before March 14th of just last year reads in part: "I have come about as close as I ever want to come to sacrificing myself to help you, and I get silence. I have silence. Conclusion: One might propose that I am either insanely brave or quote insane. I would answer neither. I'd say insanely loyal. Take your pick. There is insanity in all of the answers."
FBI Taking Stock of Damage From Agent's Suspected Spying