Lead Iranian negotiator Saeed Jalili said:
Iran's legitimate rights aren't negotiable. "(T)here is no reason or excuse to have doubt regarding the peaceful aims of Iran's nuclear program."
US intelligence and IAEA inspectors found no reason to doubt him. Yet harsh criticism continues.
RAND Corporation Iran specialist Alireza Nader believes talks may collapse. At some point, both sides may conclude that future negotiations are fruitless. Three failed rounds suggest it.
Western demands are one-sided. Nothing is offered in return. Iran's legitimate rights are called "defiant." No one would accede to these terms.
Former senior Middle East White House advisor Dennis Ross called negotiations a trap. He echoed comments from 44 Republican and Democrat senators. Their joint statement to Obama urged ending negotiations. They want tougher steps taken.
Multiple rounds let Iran advance its program, said Ross. Major powers should scrap its step-by-step approach. Comprehensive demands should replace it. It could also hasten military confrontation.
Deadlock assures it. Obama wants it. So do Romney and Republican hawks. Expect it post-November. It's planned. It's coming. It threatens world peace. It's shocking how indifferent US leaders are to its potential devastating consequences.
Anti-Iranian propaganda promotes it. So do spurious claims. Institute for Science and International Security (ISIS) claims Iran has enough enriched uranium for at least five nuclear bombs.
It also said satellite imagery shows Iran "destroy(ed) evidence" at its Parchin facility before allowing IAEA inspectors access.
So called evidence suggests buildings were demolished and alleged contaminated soil was removed. Neither claim holds water. New facilities replace old ones or expand what previously existed.
Remediating contaminated soil entirely is impossible. Easily detected residues remain. Nonetheless, ISIS claimed:
Imagery "shows heavy machinery tracks and earth displacement throughout the site."
Debris from one building was "consolidated into piles."
"There is evidence of earth moving machinery and excavation activity near the second demolished building north of the building suspected to contain the high explosive testing chamber."
David Albright heads ISIS. More on him below.