Was it one of these polls where they only call landlines? Not sure this means anything without exactly specifying how the poll was conducted.
"The typical Pew Research Center for the People & the Press national survey selects a random digit sample of both landline and cell phone numbers in all 50 U.S. states and the District of Columbia. As the proportion of Americans who rely solely or mostly on cell phones for their telephone service continues to grow, sampling both landline and cell phone numbers helps to ensure that our surveys represent all adults who have access to either (only about 2% of households in the U.S. do not have access to any phone)."
Here are the full results: http://www.people-press.org/2013/06/17/public-split-over-imp...
And just because it is interesting:
"People under 30 are the only age group in which a clear majority (60%) says that the release of classified information about the NSA phone and email data collection program serves the public interest."
I wonder if that's because, as if often said, that the people in this age group have grown up in a time when posting your "private information" (including your activities, who you associate with, etc.) is the norm.
Many of the so-called "Facebook generation", for example, seem to not give a damn about the surveillance and spying (based upon my admittedly small sample size) that is being conducted. They are already accustomed to so much more of their "private" data being public -- many of them, in fact, are quite happy to make it public.