As cruise lines release their tentative plans for returning to the sea or river, one facet of post-COVID-19 cruising is emerging: Passengers might have to wear masks when they sail, at least some of the time.
Masks, whether homemade or medical grade, have become a staple of life in communities that have been affected by COVID-19\. Many states and cities require people to wear masks in enclosed public areas, such as grocery stores, to protect others. (According to the Centers for Disease Control and Prevention, face coverings can "slow the spread of the virus and help people who might have t