Yesterday’s USA Today story about dangerous levels of lead in non-woven-polypropylene grocery bags prompted calls today for increased scrutiny of these imports from China. Safeway, Walgreens, Giant, Staples, and Bloom were among the chains whose bags were found to contain lead. Cotton cloth bags are suggested as a safe alternative. Also safe: Clipa. It’s made in the U.S. from certified sources so there’s no “mystery metal” to worry about. It’s also been independently lab tested for hazardous materials.