Nord Stream trial puts Germany in delicate position

A trial is beginning for a Ukrainian national charged with sabotaging the Nord Stream pipeline. Prosecutors allege the Ukrainian, named during the trial only as Serhii K., acted on behalf of "state agencies of Ukraine." The World's Host Carolyn Beeler speaks with The Wall Street Journal's Bojan Pancevski, the author of "The Nord Stream Conspiracy: The Inside Story of the Explosions That Shook the World," about the implications of the trial.