CNNW Sanjay Gupta MD July 21, 2012
some questions. this -- just a second -- i want to reemphasize what the chief said yesterday. this case will be tried inside a court. okay? so i have to be very careful with my responses. i do not want to jeopardize a future prosecution. [ question inaudible ] >> so again i'm not going to elaborate on this. we have done some field tests but we are sending that evidence back to the fbi lab at quantico. they will make the definitive conclusion as to what those substances are. >> can you talk about your personal experience with this? >> i'm sorry. say again sir? [ question inaudible ] >...