AdvertisementMissing 'Priceless' Artwork? Call Robert WittmanPlay37:34Download AudioJuly 12, 2010facebookEmailA self-portrait by Rembrandt, valued at $36 million, was taken from the Swedish National Museum in 2000. Robert Wittman, founder of the FBI's Art Crime Team, went undercover — as an authenticator for an Eastern European mob group — to recover it.