By THE ASSOCIATED PRESS Filed at 5:50 a.m. ET DARTMOUTH, Mass. (AP) -- The war on terror could have an unlikely ally in a modest mollusk known as the quahog. Researchers who injected the clams with enough botulism toxin to kill 1,000 people found the shellfish somehow neutralized the enzyme, which is considered a potential bioterror agent. ``Botulism activity was cut in half by the blood of the quahog,'' Dr. Bal Ram Singh told The Standard Times of New Bedford in Wednesday's editions. ``So we think there is some sort of antidote in this blood. If we are able to...