The number of peanut butter products being recalled is growing, as the FDA sorts through a salmonella outbreak that has killed at least six people and sickened more than 470 others in 43 states. The FDA has traced the source of the outbreak to a plant in Blakely, Ga., owned by Peanut Corporation of America, the Associated Press reports. The company over the weekend expanded its recall to include all peanut butter and paste produced at the plant since July 1, according to the AP.