On tonight's CBS Evening News -- the nationwide baby formula shortage reaches a crisis level. As parents scramble, how the federal government is moving to solve the problem. Plus -- "Eye on America." How a two-decade drought is eroding one of America's most iconic reservoirs. And -- how Good Samaritans came to the rescue during a Florida woman's medical emergency. 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.