Final answer:
USA Today is the second-largest newspaper in the U.S. by circulation and the only major newspaper with a period at its masthead.
Step-by-step explanation:
The newspaper that holds the distinction of being the second-largest in the United States by circulation, and also being the only major newspaper with a period at the end of its masthead, is USA Today. This newspaper, like its peers, has adapted to changing times by engaging with social media platforms such as Face book and Tw itter to maintain its visibility and profitability in the digital age. Despite the evolution of media consumption, traditional newspapers like USA Today still play a significant role in originating the majority of domestic and foreign news, maintaining an influential position in the mass media landscape.