This publication represents the result of the fruitful workshop
organised with the aim to attract the attention on the possibility of
bio terrorism attack, with the s- port of NATO funds. In the last years
the attention was strongly concentrated on the terrorism view similar to
"military type attacks: " bomb on the trains, kamikazes, airplanes etc.
As consequence many devices studied are directed to prevent these
attacks such as the control of the passengers before the flight. For the
people terrorism is therefore equivalent to bomb or similar and nobody
think that there is also other possible and sophisticated means that can
be used by the terrorist. In 1995 Sarin gas in the Tokio subway killed
12 people and affected 5,000 persons. In the USA anthrax was sent by
mail to many federal offices. These events and other cases attract the
attention on these possible terrorist attacks and the first
recommendations for preventing theses events were\elaborated in the
United State and in Europe. The possible agents and the modality that
can be used for the diffusion are analysed and food and water are
considered the principal and more favourable way. The story and the
principal decision about this were reported in the first article of this
collection which introduces the concept of bio-terrorism.