Not a pretty picture.
As Morgan notes in a fascinating Medium piece on our declining trust in one another: "The percentage of all respondents who said that most people can be trusted dropped from about 46 percent in 1972 to about 32 percent in 2012."
Morgan doesn't attempt to draw a single conclusion for the "why" behind our erosion in trust. And, there's no way a single factor is responsible for such a large societal change. But, he does note that the ubiquity of television, the Internet and smart phones have fueled less direct human interaction and, therefore, perhaps also fueled a lack of willingness to give others the benefit of the doubt.