Not all is as it seems at the organization behind a nationwide grassroots movement that seeks to make the National Rifle Association “politically radioactive.” Within 24 hours of last Wednesday’s mass shooting at a Florida high school that left 17 dead, gun control activists had concocted No NRA Money, an organization behind a national grassroots pledge campaign that seeks to “break the NRA’s stranglehold that has thwarted meaningful progress on common sense gun policy.” But No NRA Money’s claim to be a grassroots movement is questionable. Hidden within the HTML code running No NRA Money’s website is a link to...