Louis Theroux signs up for his most dangerous assignment - patrolling the crime-ridden streets of Philadelphia with local law enforcement - to find out why crime and violence in the city is so bad.

Louis Theroux is undeniably one of the most popular documentarians of our time. Over the past three decades, he has informed and entertained millions with his curious investigations into various ...

Listen to more stories on the Noa app. As a chronicler of American subcultures, Louis Theroux is used to being in uncomfortable situations. But when he started to research his latest documentary ...