Only one reason was named explicitly, unless you consider the phrase "progress in our bilateral agenda" to be anything other than generic place-holder text. "F

Only one reason was named explicitly, unless you consider the phrase "progress in our bilateral agenda" to be anything other than generic place-holder text. "Following a careful review begun in July, we have reached the conclusion that there is not enough recent progress in our bilateral agenda with Russia to hold a U.S.-Russia Summit in early September, Russia’s disappointing decision to grant Edward Snowden temporary asylum was also a factor that we considered in assessing the current state of our bilateral relationship."