What's the Kennection? #10

What TV emcee hosted over 2,800 episodes of the game show 'Password' between 1962 and 1975?

At the 1964 rally that kicked off his Organization of Afro-American Unity, who said, "We want equality—by any means necessary"?

What TV protagonist was born Dick Whitman but borrowed the name of an engineer he saw killed in Korea?

Who's the only U.S. president ever to have survived two assassination attempts by women?

Cartoon legend Mel Blanc, who played Dino, did double-duty as the voice of what other character on 'The Flintstones'?

What's the "Kennection"?