Pedzisa mutsara unotevera: United States Federal Bureau of Investigation (FBI) yakataura kuti Bruce Ivins, musayendisiti wehurumende anoona nezvezvombo zvine utachiona, ndiye oga aiva nomutoro wokuparadzwa kwacho.
kurwiswa neutachiona hwezvinhu zvipenyu muU.S.A. muna 2001 kwakauya nguva pfupi pashure pokurwiswa kwaSeptember 11, 2001. Ivins akazviuraya musi waJuly 29, 2008.