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Presidents Barack Obama and Bill Clinton honor the late president John F. Kennedy.

The men joined hands with Ethel Kennedy, as they walked toward the gravesite at Arlington National Cemetery.

The presidents were joined by their wives, as together the four of them placed the wreath on the stand.

Taps played as the silent crowd stood around the eternal flame at President Kennedy's gravesite.

After the service, President Obama, the first lady, President Clinton and Hillary Clinton greeted members of the Kennedy family.. including Ethel Kennedy, and Jack Schlossberg -- jfk's grandson who bears a striking resemblance to his uncle, the late jfk junior.