On this week's "60 Minutes," Anderson Cooper talks to former defense secretary and CIA head Robert Gates, who touched on several other topics -- including the rise of China and the limits of America's military. Bill Whitaker reports on the Green River Drift, where ranchers push thousands of cows along the same 70-mile route their ancestors pioneered 125 years ago. And Jon Wertheim travels to Great Britain to report on the future of England's pubs -- after the coronavirus pandemic closed them to close their tabs for more than a year. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.