U.S. INVITES IRAN TO AFGHANISTAN CONFERENCE
May open office in Tehran

"... the Obama administration intends to invite Iran to an international conference on Afghanistan... Iran borders Afghanistan and worked closely with the United States after the U.S. military offensive there to topple the Taliban and fight al Qaeda following the September 11, 2001 attacks... The United States is doing a full policy review of the traditional isolation policy of Iran, including whether to open up a low-level diplomatic office in Tehran..."
http://news.yahoo.com/s/nm/20090305/ts_nm/us_iran_usa_3