China has canceled flights and suspended reopenings when the coronavirus flared in the capital of Beijing. But with cases rising in some U.S. states, officials have balked at even requiring face masks. A political and cultural debate has emerged as officials struggle to balance demands for constitutional rights and personal freedom against warnings from doctors of deadly consequences. Arizona’s governor said cities were free to mandate masks but said a statewide order wouldn’t be effective. Cases are surging there as well as in places like Texas and Florida, whose governors also have resisted statewide mask requirements.