It also ensures public safety in terrorist emergencies such as chemical, bacteriological, radiological and nuclear attacks.

He notes: "We're vulnerable today to a chemical, biological or radiological attack by terrorists.

"It's not like it's going to come over that there has been a radiological or bio attack," she said.

"Biological or chemical or radiological or nuclear attacks on the country would just be - you know, we couldn't have it."

The Pentagon is thoroughly protected against chemical, biological and radiological attack.

Are we, as a nation, prepared for a radiological or nuclear attack?

The threat of radiological attacks has led several organizations to develop specially designed nuclear detection systems.

In the case of an attempted or successful nuclear or radiological attack, rapid attribution is critical.

If the highway was shut down near Hope because of a biological, chemical or radiological attack, many people would be forced to evacuate through town, he said.

The film is considered an accurate portrayal of a potential radiological terrorist attack with subsequent emergency response.