1.   Burning destroys anthrax spores that otherwise can remain viable in soil for decades, waiting to be blown or kicked onto grass and eaten by unlucky cattle or deer.

2.   High temperatures, the agency stipulates, are the best way to make sure that all anthrax spores are destroyed.

3.   These molecules break up DNA and destroy bacterial spores.

4.   Some spores are destroyed but others somehow survive in the macrophages, eventually being transported to the lymph nodes.