Why human toll of battle for Mosul may never be known

More than a year has passed since the brutal battle to retake the Iraqi city of Mosul from ISIS ended. But parts of the city, which was pummeled by both sides in the conflict, remain in shambles, marked by booby traps and buried bodies. As residents strive to return to normal life, the city’s governor, Nawfal Hammadi, is tasked with reconstruction. Special correspondent Jane Ferguson reports.