The Kennedy Interchange, unofficially, though universally, referred to as Spaghetti Junction, is the intersection of Interstates 64, 65 and 71 at the northeastern edge of downtown Louisville, it is named for the "John F. Kennedy Memorial Bridge", a six-lane, single-deck cantilever bridge that carries southbound Interstate 65 across the Ohio River, connecting Louisville, Kentucky and Jeffersonville, Indiana, in which country?