Key scientists described to Preston what they were thinking during that period .
Richard Preston 's book provides details of conversations and events at USAMRIID during the period from October 16 , 2001 , to October 25 , 2001 .
Key scientists described to Richard Preston what they were thinking during that period .
Richard Preston 's book provides details of conversations and events at USAMRIID during the period from October 16 , 2001 , to October 25 , 2001 .