A new report says abortion providers have been “routinely targeted” in six states and require further government protection. The Center for Reproductive Rights says clinics and doctors in Mississippi, North Dakota, Missouri, Alabama, Pennsylvania, and Texas face worrying levels of harassment. Nationwide, the group says the number of physicians and clinics providing abortions has dropped 25 percent over the last decade. The study was completed before the May killing of the Kansas-based abortion provider Dr. George Tiller, whose clinic subsequently closed.