Chuck Todd, the host of “Meet the Press,” fired back Thursday after being repeatedly accused of McCarthyism by conservative commentator and Fox News personality Tucker Carlson. Mr. Todd delivered a monologue about McCarthyism during the NBC show’s latest episode, saying the term has been used recently absent “much intellectual honesty or care.” Without mentioning Mr. Carlson by name, Mr. Todd weighed in on the heels of the Fox News host repeatedly comparing him this week to former Sen. Joe McCarthy, the late Wisconsin Republican who infamously accused Americans during the Cold War of being communists. Mr. Todd played a montage...