It is a fact that fewer people answer pollsters questions than ever before. More than this, the one data point that is NEVER reported is a poll’s response rate. There is good reason for this omission. Earlier this year, the Pew Research firm reported that since the late 1990s the rate of response to pollsters requests for a few minutes to answer their questions has fallen from just under 40% to around 9%. This means that to get even 1000 responses, given some technical problems they must make about 11000 calls and that says nothing about the demographic breakdowns they...