What motivates Covid rulebreakers?

As the COVID-19 pandemic lashes countries in a second (and in some cases, third) wave of infections, patience and solidarity are giving way to frustration and blame. Officials in the United States and Germany say the latest upsurge in infections in their countries is a consequence of a selfish minority that is ignoring basic social distancing rules, while Berlin’s tourism authority has launched a colorful campaign—complete with an old lady and an offensive finger—chastising visitors who refuse to wear masks.