Robert F. Kennedy Jr., the health secretary, shared photos of himself and his grandchildren swimming in waters that handle sewer overflow.

Kennedy Jr. swam in a creek in Washington, D.C., that has been deemed unsafe due to its high levels of bacteria Kennedy, the Health and Human Services secretary, took his young grandchildren along for the swim and posted photos of them by the water with him The National Park Service has warned that Rock Creek could have dangerous pathogens harmful to pets and humans Robert F.