Forty years ago, during another costly, pointless war of choice, Robert Kennedy admitted he made a mistake in supporting the war, and became one of the loudest voices of opposition.

"We are entitled to ask - we are required to ask - how many more men, how many more lives, how much more destruction will be asked, to provide the military victory that is always just around the corner, to pour into this bottomless pit of our dreams?"  -- Bobby Kennedy, March 18, 1968

Forty years ago Friday, Kennedy was killed. His wife Ethel has endorsed Barack Obama in this year's presidential election: "Barack is so like Bobby ... With courage, caring, and charisma, Senator Obama is leading us toward a kinder, gentler world."

This week, Obama secured the party's nomination, picking up the torch dropped forty years ago on that dirty kitchen floor of the Ambassador Hotel.