Salmonella in your salad: what is bioterrorism?

Could someone use a virus as a weapon in real life? And if the answer is yes, how would we protect ourselves? Main sources: Bioterrorism - CDC Emergency Preparedness https://emergency.cdc.gov/bioterrorism/History | Federal Select Agent Program https://www.selectagents.gov/overview/history.htmBioterrorism : A Public Health Perspective - PMC - NCBI https://www.ncbi.nlm.nih.gov/pmc/articles/PMC492253/Bioterrorism - Interpol https://www.interpol.int/en/Crimes/Terrorism/BioterorismMuere el terrorista de las cartas con ántrax | Internacional - EL PAÍS https://elpais.com/diario/2008/08/02/internacional/1217628001_850215.html