Weekend Roundup

Floridians are preparing for the arrival of Hurricane Dorian. Former Defense Security James Mattis is out with a new book, which details his time in the Trump administration. Families of the latest mass shootings are speaking out on how to end the cycle. Plus -- the latest on the health effects of vaping. Correspondent Bill Rehkopf will have those stories and more on the CBS News Weekend Roundup. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.