By "we, who grew up in the 60's and 70's", you can't be saying that the majority of folks around at the time 'knew' most of this? Perhaps, you meant those few such as yourself who, through various means, actively sought the info out on your own? Because as you even stated yourself, the docs weren't out in the open. And surely the MSM, even then, didn't go into these sorts of 'details' (esp the communist angle). I'm sure there are many 60-70's generation people here who didn't know a lot of this.
In fact, even now (2008), none of the popular conservative commentators ever really get in to the communist connections. Sean Hannity, for example, hasn't once, referred to Bill Ayers or the Weather Underground as being communist in their ideology. He refers to them only as "domestic terrorists". Same is true for Rev Wright and Black Liberation Theology (except for that one special Friday night airing of Hannity's America which I excerpted in the main post at the top).
BTTT!