Tricks of the trade

After reading former FBI agent Robert King Wittman's book about tracking down art thieves, screenwriter and critic Shi Hang says Wittman is a real-life Indiana Jones.

Shi says he was most impressed when reading Wittman's five techniques used by undercover agents.

At a lecture in Beijing, Wittman says he hopes the five steps can be useful to help the readers secure a good job.