Another salvo, this one from Sun Products, has been fired in the detergent war. New Wisk Deep Clean will debut next month. Its new formula contains something called MicroCleaners, which seek out and attack trapped hidden body oils and sweat, which is the No. 1 laundry soil issue, according to Sun, which notes that the average washload contains 20 times more body oils and sweat than visible stains. But New Wisk Deep Clean goes beyond surface stains penetrating deep inside fabric to attack and...