Posted for Meredith Wadman A gray, sinister-looking picture of US Food and Drug Administration (FDA) commissioner Andrew von Eschenbach appeared in a full-page ad in Tuesday’s Washington Post. “Meet Andrew von Eschenbach,” the caption ran. “On His Watch, `FDA’ Stands for `Federal Dog Abuse.’” The ad, placed by People for the Ethical Treatment of Animals (PETA) goes on to explain, atop a smaller picture of an adorable puppy, that “because the FDA guidelines are antiquated, dogs are still force