There were ‘very moving scenes’ in New York as the ‘city mourned’ lives lost

Sky News host Chris Smith says there were some very moving scenes in New York as the city mourned those who lost their lives in the 9/11 attacks which took place 20 years ago.

Mr Smith spoke to the former Director-General of ASIO, Dennis Richardson, about the attacks and the impacts felt around the world as a result.

Mr Richardson said that globally, security "is tighter" now than what it was in 2001.