But he and many others say biological agents are not a total answer.

Biological agents spread through the air, water or in food.

The use of biological agents, including anthrax, was also considered.

It took the inspectors four years to find out that Iraq was making biological agents.

The three ways a terrorist can release biological agents is through air, water or food.

The Japanese government still denies that its army ever used biological agents.

Biological agents in category A pose a high risk to national security.

"It is another example that they had an appetite for developing biological agents."

Significantly, he said, Iraq has developed a technique for making dry biological agents.

Then they tried a different test to see if it contained harmful biological agents.

Iraq might use chemical or biological agents against our invading forces.

Iraq says the bombs were filled with biological agents and destroyed.

The article warned against ignoring safety issues with use of biological agents.

In total, the program grew a half million liters of biological agents.

A useful trait when chemical and biological agents were being used.

Some biological agents can cause severe human disease and be a serious hazard to employees.

The letter also said the government wanted to make sure companies were safeguarding their own technology from being used to create biological agents.

For more information about ricin and other biological agents, visit the next page.

Cleaning people that have been exposed to chemical or biological agents.

But it does not prohibit research and development of defensive measures against biological agents.

But biological agents are far more difficult to identify than chemical ones like nerve gas.

"You can keep better track of who is ordering questionable biological agents," he said.

Iraq has worked to develop weapons of mass destruction including chemical and biological agents.

Authorities also found books relating to the production of chemical and biological agents.

Before the 20th century, the use of biological agents took three major forms: