With the busy travel weekend ahead…we’d love to hear your thoughts. Do you still wear a mask on planes or in the grocery store? And, if you’ve tested positive for COVID, is it still okay to fly as long as you wear a mask? The government has basically taken a "do it yourself" approach to public safety, but that doesn't mean there's still not some strong public opinion around masking. So, we spoke with an expert, Dr. Davidson Hamer, professor of global health and medicine at Boston University School of Public Health, on how to handle the situation from a medical and moral standpoint. One thing she notes is that it’s not *just* about protecting fellow travelers you come in contact with, but also about preserving your own health: "From the individual health standpoint, it may also not be wise to fly if one has moderate to severe COVID given potential risk for hypoxemia (the cabin is pressurized to the equivalent of an altitude of 8000 feet) and sinus congestion leading potentially to Eusta...