On tonight's CBS Evening News, a major health update. First, a reversal on guidance if you should be taking an aspirin a day. Plus, we take a look at possible carcinogens that could be in your drinking water. And -- if you see it, you can be it. The talented young musicians from around the country and the amazing opportunity they're getting to learn alongside the best. That's tonight on the CBS Evening News.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.