Investigators have found that the strain of anthrax on the letter mailed to Daschle's office was ``a very potent form of anthrax that clearly was produced by someone who knew what he or she was doing,'' the majority leader said.
Three government sources, all speaking on condition of anonymity, said preliminary testing indicated the anthrax had been refined enough so that it could be easily dispersed through the air. One law enforcement official, also speaking on condition of anonymity, said the anthrax was in a purified form that could be used as a weapon. Additional testing was being done late Tuesday.
This is not your local yokel's anthrax.