"Who is Don Draper?" Were the first words spoken in the season premiere today on "Mad Men". Proceeding from this episode, at least, my score would have been reluctant: "Well, he sort of jerk.This November, 1964. Last year, the country has undergone tremendous upheaval: The Beatles had landed, the Vietnam War continues, and the Civil Rights Act was signed into law. Of course there were some at least of seismic shifts in the fictional world of "Mad Men". It was almost a year with Don agreed to give Betty a divorce and start a new agency. Sterling Sterling Cooper Cooper now Draper Price, "scrappy upstart" with a dazzling cool, if somewhat claustrophobic offices.