in new york's southern district said it's their office policy neither to confirm nor deny the existence of investigations. i'm spoking with mahmoud karzai's attorney. have you or has mr. karzai been contacted about any possible probe by u.s. officials? >> no, absolutely not. as a matter of fact, mahmoud karzai found out there might be a criminal probe by a call from a "wall street journal" reporter. >> reporter: we contacted the justice department, the u.s. embassy in kabul and the afghan embassy in washington. none of those entities would comment. we could not reach anyone with president hamid karzai's staff to comment, possibly because of the time difference. carl forsberg with the institute for the study of war has written papers and testified before congress on corruption in afghanistan. what is the general concern regarding mahmoud karzai and his brothers in the whole corruption situation there? >> a lot of concerns stem from his business associations. he has connections to a lot of