More Americans Realizing Threat of WMDs

Level of concern about a chemical or biological terrorist attack.
("Concerned" responses listed)

	Jan. 2007	Jan. 2006
Chemical terrorism, like dangerous chemicals released into drinking water	70%	52%
Biological terrorism, like anthrax or small pox	64%	50%

Source: Greenberg Quinlan Rosner Research / Trust for America’s Health
Methodology: Telephone interviews with 856 registered American voters, conducted from Jan. 18 to Jan. 22, 2007. Margin of error is 3.4 per cent.