For one thing those on the front line in counter-terrorism warn that it risks cutting off vital local intelligence and serving as a recruiting sergeant for terrorists.
We will work to keep terrorists from disrupting computer networks, to prepare local communities for biological and chemical emergencies, and to support research into vaccines and treatments.
The official said the warning was sent in a weekly bulletin to 18, 000 state and local agencies, a lightly classified alert that outlines possible tactics terrorists could use.