Iran has claimed that we're "close to a deal" ever since the Riyadh bombing. It doesn't sound like the US is too impressed:
http://www.cnn.com/2003/WORLD/meast/10/27/iran.al.qaeda/index.html I'm with the anonymous official - put up or shut up. There has been a lot of talk from the Iranians about deportations and the like but until they cough up Saad, al-Adel, and Zarqawi it's just that - talk.