a smart way to wash your hands. some people have joint pain, plus have high blood pressure. they may not be able to take just anything for pain. that's why doctors recommend tylenol®. it won't raise blood pressure the way that advil® aleve® or motrin® sometimes can. for trusted relief, trust tylenol®. >> brennan: on tomorrow's "cbs evening news," we go where the buffalo roam to show you how a native american tribe is working to save these magnificent creatures. if you can't watch us live, don't forget to set your dvr so you can watch us later. that is tonight's "cbs evening news." for norah o'donnell, i'm