NATIONAL (NEXSTAR) – The Norwegian Cruise Line is seeking permission to resume trips from U.S. ports on July 4, requiring passengers and crew members to be vaccinated against COVID-19 at least two weeks before the trip. The Miami company said its …NATIONAL (NEXSTAR) – The Norwegian Cruise Line is seeking permission to resume trips from U.S. ports on July 4, requiring passengers and crew members to be vaccinated against COVID-19 at least two weeks before the trip. The Miami company said its …