The BBC News on retired FBI Art Crime Special Agent Bob Wittman. "For nearly two decades, usually masquerading as a crooked art dealer with links to the Mafia or the Colombian drug cartels, he has run undercover sting operations, luring criminals into selling him stolen works of art" -- but now he's "forging a new career as a private art-security consultant."
Some interesting numbers:
"The FBI's Art Crime Team has 12 agents spread across the United States. Scotland Yard has four detectives - France has 30. Not surprisingly, in view of its vast cultural patrimony, Italy boasts the world's biggest team - 300 art-hunting Carabinieri, including agents who use helicopters to patrol the country's myriad archaeological sites."
UPDATE: More on Wittman from NPR today.