What's the Kennection? #390

What's the last name of the gifted title characters, and their whole family, in J.D. Salinger's 'Franny and Zooey'?

What's the only country in Asia that's a member of NATO?

In woodworking, what are you making if you combine a mortise and a tenon?

The king, or Chinook, is the largest species of what fish?

What thoroughbred horse, sired by the great Seattle Slew, retired in 1998 with a record $10 million in total earnings?

What's the "Kennection"?