Iran, U.S., EU in face-off as deadline looms over nuclear deal adherence
As Iran surpasses enriched uranium threshold, Europeans scramble for alternative trade channel to stave off complete break.
The Iranian flag flutters in front of the International Atomic Energy Agency (IAEA) headquarters in Vienna last March(photo credit: REUTERS/LEONHARD FOEGER)ByJUDITH SUDILOVSKY/THE MEDIA LINE