Is China finally acting behind the curtain--good for engagement with Iran?

In Release of Journalists, Both Clintons Had Key Roles - NYTimes.com: "Former President Bill Clinton left North Korea on Wednesday morning after a dramatic 20-hour visit, in which he won the freedom of two American journalists, opened a diplomatic channel to North Korea’s reclusive government and dined with the North’s ailing leader, Kim Jong-il."

This is surprising and extraordinary positive news. The diplomacy route to troublesome states might after all be working. An Iran humbled by its election debacle might in actuality now be more positive to engagement. In some creative fashion.