Other colors, such as pink or green, are achievable after synthesis using irradiation.

One of the other proven methods is using irradiation, which reduces pathogenic microorganisms.

Organic foods are also not processed using irradiation, industrial solvents, or chemical food additives.

We could use irradiation to kill bacteria in every piece of mail, and terrorists could find countless other ways to spread anthrax.

Insect pests can be sterilized (be made incapable of proliferation) using irradiation at relatively low doses.

Preparative drug regimens have varied; some investigators also use total-body irradiation.

Food & Water also has tried to pressure poultry companies to keep them from using irradiation.

Manufacturers use irradiation to sterilize products on the assembly line.

"We're not going to use irradiation until we're sure the public will accept it," said James Moran, a company spokesman.

Producers of fruits and vegetables received permission to use irradiation last year, but they are not rushing into it.