Ayatollah Khamenei thumbing his nose at Obama… again.

VIENNA – Iran appears to have built an extension to part of its Parchin military site since May, the UN nuclear watchdog said in a report on Thursday delving into a major part of its inquiry into possible military dimensions to Tehran’s past atomic activity.

A resolution of the International Atomic Energy Agency’s Parchin file, which includes a demand for IAEA access to the site, is a symbolically important issue that could help make or break Tehran’s July 14 nuclear deal with six world powers.

The confidential IAEA report, obtained by Reuters, said: “Since (our) previous report (in May), at a particular location at the Parchin site, the agency has continued to observe, through satellite imagery, the presence of vehicles, equipment, and probable construction materials. In addition, a small extension to an existing building appears to have [been] constructed.”

Diplomats say any activities Iran has undertaken at Parchin since 2012 are likely to have undermined the agency’s ability to verify intelligence suggesting Tehran previously conducted tests there relevant to nuclear bomb detonations.