What is the current threat to the United States from either a biological or chemical weapon and why? What should the United States do to better prepare for, or counter, the threat fro

What is the current threat to the United States from either a biological or chemical weapon and why? What should the United States do to better prepare for, or counter, the threat fro

 

What is the current threat to the United States from either a biological or chemical weapon and why? What should the United States do to better prepare for, or counter, the threat from WMDs (weapons of mass destruction)?

 

What is the current threat to the United States from either a biological or chemical weapon and why? What should the United States do to better prepare for, or counter, the threat from WMDs (weapons of mass destruction)?