Mark Gibson: I have, for the past year, been editing the “World” page of the Chronicle, scanning daily through the headlines in the Associated Press news feed looking for stories. My formula is fairly simple: One story with art is “lead,” another goes below if there’s room and the most interesting tidbits flow down one side.

Sometimes I run the big story of the day, the one people are talking most about: Ebola in Africa, War in the Middle East, Nuclear Meltdowns in Japan.