The PRISM program is interesting not only from a tech and privacy perspective, but also from an economic one. Much like the recent GMO wheat debacle, there is a real question as to what impact this will have on foreign consumption of goods and services. I've seen people calling for boycotts of cloud services, for example. Don't get me wrong - this isn't some 'sky is falling' type of comment. It's just a note that there can be an impact. Probably small, for any individual incident (probably). Build enough small incidents, though, and you end up with where American food is - generally suspect - our beef has been banned repeatedly is Asia, our wheat and corn modified (which is not appreciated some places).