FBI informant recorded World Trade Centre attack
An FBI informant secretly recording a conversation with a tax assessor ended up making what is believed to be the only known uninterrupted audio recording of the September 11 attack on the World Trade Centre in New York.
Steven McArdle, a tax consultant, was at a nearby hotel to meet the assessor as part of an investigation. Their discussion was being recorded by two FBI agents a few blocks from the twin towers.
