Boozman sycophants are howling about this latest Blanche Lincoln ad. Such an "attack." So unfair. Truth hurts poor ol' Dr. No. Actually, the ad goes too easy on Boozman. As has often been explained, the bills he's sponsored actually would put a 30 percent national sales tax (as we customarily compute a sales tax) in place of the income tax. If you think this would produce a gain for low- and middle-income people, think again about a 30 percent tax on groceries, clothes, utilities, cars, houses. It would be a bonanza of untold size for people like the Waltons, of course. And there's no telling how high the sales tax would really have to be to remain revenue neutral, once various special interests cut side deals for special relief.