In honor of the Reagan\u2019s Library current special exhibition, FBI: From Al Capone to Al Qaeda, which is on display through January 9, 2022, this week\u2019s Words to Live By podcast focuses on the FBI. The FBI is the nation's lead federal law enforcement agency for investigating and preventing acts of domestic and international terrorism. It is the lead federal agency for investigating attacks involving weapons of mass destruction\u2014those involving chemical, radiological, or biological agents or nuclear weapons.