DAILY BRIEFSThis is the darkest time of year to be a runner, literally and figuratively. But running in the cold weather has surprising health benefits. New research suggests that one side of a coin flip offers a (slight) advantage. What can the history of travel tell us about its future? According to Shahnaz Habib, it may mean never physically leaving home. Images of food are at the center of a new political scandal. Coastal cities are sinking faster than sea levels are rising. Here's what to know. | 