A firefighter from Georgia and two fathers who drowned while trying to save their children are among at least 10 recent victims of dangerous rip currents along Gulf of Mexico beaches stretching across Florida’s Panhandle to Gulf Shores, Alabama. Many of the deaths have occurred even though double red flags warned beachgoers of the dangers. Six deaths since mid-June have occurred around Panama City Beach. Ex-NFL quarterback Ryan Mallett, 35, drowned Tuesday in nearby Destin, but local officials said rip currents weren’t observed, and yellow caution flags, not double red flags, were ...