"Losing Iraq" and "The Rise of ISIS" - Preview

On Oct. 21, in an hour-long version of FRONTLINE's acclaimed July special, FRONTLINE revisits reporting on U.S. missteps in Iraq since 2003. "Losing Iraq" will be followed on Oct. 28 by "The Rise of ISIS" -- a chilling new report from Iraq on how and why the brutal jihadist group came to power. Visit pbs.org/frontline for more info.