Once an unrivaled political power, the NRA is facing challenges from all sides. FRONTLINE investigates the organization's history and evolution, how it aligned with President Donald Trump and his base, and why it is under attack ahead of the 2020 election.

A special undercover report from China's secretive Xinjiang region. FRONTLINE investigates the Communist regime's mass imprisonment of Muslims, and its use and testing of sophisticated surveillance technology against the Uyghur community.