What's the Kennection? #371

What 2008 Gus Van Sant movie won Sean Penn his second Oscar, for playing the title San Francisco politician?

What northern Italian city gave us a word for “bunk” or “hooey”—ironically, since it’s home to the oldest university in the world?

What ingredient would you spoon into vinegar to create the classic science fair “volcano” demonstration?

What was Bruce Springsteen “Blinded by,” in the title of his very first single?

What HBO series begins with the “Sudden Departure,” in which 2 percent of the human race mysteriously vanishes?

What's the "Kennection"?