The situation: A terrorist group releases a lethal cloud of anthrax spores over Calexico along the international border.
Twenty-four hours later, the terrorist group makes an anonymous call revealing its deadly act.
The sequence of events following a major public health emergency was the backbone of a bioterrorism disaster exercise the Imperial County Emergency Medical Services Agency sponsored Thursday morning.
Several local law enforcement agencies participated in the two-hour roundtable discussion exploring the "what-ifs" of a medical emergency that would threaten public health.
Thursday's exercise marked the end of a two-year grant the county received from the California Emergency Medical Services Authority.
Under the grant, the county received $60,000 to develop and organize a medical/health branch within Imperial County that would respond to and make decisions for a coordinated response to a major medical health emergency such as floods, earthquakes or as displayed in Thursday's exercise, acts of terrorism.