Wrangling over the extension of the 710 freeway has been going on for a very long time as evidenced by this file of articles from 1974 about a proposed westerly extension of the 710 that would have had it join up with the 110 right around York Avenue. Take a look at the whole series for the advertisements & other articles that were included in the scanning of the principal articles on the topic of the freeway expansion. All in all, quite interesting.