Cases of tularemia should be reported to the local health authority. The Centers for Disease Control and Prevention think "F. tularensis" could possibly be a bioweapons agent. For this reason, it has been included in the biological warfare programs of the USA, USSR and Japan at various times. A former Soviet biological weapons scientist, Kenneth Alibek, has said that an outbreak of Tularemia among German soldiers shortly before the siege of Stalingrad was due to intentional release of F. tularensis by Soviet forces, but this claim is rejected by others who have studied the outbreak. In the USA, practical research into using Tularemia as a bioweapon took place at Camp Detrick in the 1950s. It was viewed as an attractive agent because: