mr. wittman, thank you so much for coming on. >> thank you. >> stephen: okay. you've got a fascinating job. you are a former senior investigator and founder of the f.b.i.'s arts crime team. during 20 years of your career there, you recovered more than 225 million dollars worth of stolen art and cultural property. now you've got your own firm, robert whitman incorporated, and your memoir is called "priceless." okay. how does one become an investigator in art crime? they say it takes a thief. are you a cat burglar turned good? >> new york i think what you have to do is you have to have a real deep understanding and love of art. i think that that helps. and then also you have to have an understanding of the art business. because, you know, when we talk about art and art history, you know, people know the stories of rembrandt, and they know the stories of renoir and monet and being blind and that type of thing, but that's not what we do when we talk about art crime. art crime is all about the art business and the business of art and how to make a deal in the art wo