On the 11th of September 2001, almost 3,000 people were killed when hijackers crashed planes into the World Trade Center, the Pentagon and a field in rural Pennsylvania. Irishman Paul McCormack is a former NYPD officer who was there and was involved in the recovery mission on Ground Zero in the following months. That work resulted in the serious deterioration of his eyesight, and in 2010 he retired from the force.
Margaret McDonnell lost her husband - NYPD police officer Brian McDonnell – in the attacks. He was last seen heading into the south tower, and his body was never recovered. Ciara spoke to Maggie and Paul who were in Dallas for a special exhibition to mark the 20th anniversary of the attacks this weekend.