Obama says he and Iran's Rowhani swapped letters

The US president, in an interview aired on Sunday, publicly confirmed the outreach to Rowhani for the first time, and said he believed the Syria chemical arms drama showed that diplomacy could work if backed by threats of military action.

http://www.dailytimes.com.pk/default.asp?page=2013\09\16\story_16-9-2013_pg4_3