UPDATE: Ban Ki-Moon invites Iran to the Syria peace talks, Margaret Warner is there

The Wall Street Journal reports the U.S. expects the UN to revoke their invitation to Iran to attend the Syria peace talks in Geneva.

Breaking: U.S. expects U.N. to "rescind" invitation to Iran on Syria talks. http://t.co/tYCeELTJqc

— Wall Street Journal (@WSJ) January 20, 2014

Margaret Warner is on her way to Geneva for the second round of peace talks between the Syrian regime and Syrian opposition. When she landed, Margaret was greeted by the news Iran will be attending the the talks at the invitation of Ban Ki-Moon. And with Iran attending, the Syrian opposition is threatening to abandon the talks. Margaret discovered Iran’s attendance wasn’t a surprise; U.S. officials were tipped off on the invite. We’ll talk to Margaret from Switzerland tonight on the PBS NewsHour.

On train to #Syria talks #Geneva— a US official tells me US had a heads-up on #Ban KiMoon invite to #Iran to attend.

— Margaret Warner (@MargaretWarner) January 20, 2014