Iran nuclear talks: Why all sides kept positive

csmonitor.com — The talks Saturday between Iran and six major powers featured the most positive atmosphere in nearly a decade. In the forlorn panoply of Iran's nuclear negotiations with world powers over the years, the positive atmosphere that prevailed during Saturday talks in Istanbul was the best in nearly a decade.
My report: Iran believes it won acceptance of uranium enrichment; P5+1 that #Iran agreed total transparency under NPT t.co/mySrTWEC