UN atomic watchdog says just 1 cluster of UF6 machines being used at aboveground part of nuke site hit in blast blamed on Israel; older cascades said being used for 20% enrichment

Military says Kohavi will meet with top American military, civilian leadership during 5-day trip to raise Israel's concerns over Tehran's nuclear program and entrenchment in region

In briefing on negotiations for return to nuclear deal, State Department official insists US has been transparent with Israel, including on possible sanctions relief for Iran

But Washington and Tehran have not yet gone into detail during indirect negotiations on the question of which side will take first step

IAEA records 8 new cascades at underground nuclear site hit in blast blamed on Israel; says Islamic Republic planning to add more

Media reports describe feelings of lack of trust and transparency as Washington moves to reenter pact Israel despises; Jerusalem said still hoping to bridge gaps

Ongoing covert actions against Tehran's nuclear program risk causing a rupture with Biden while unlikely to stop a new agreement that both Washington and Tehran want

Ali Akbar Salehi, head of country's atomic agency, claims enrichment at key nuclear site never stopped following blast blamed on Israel

'Rattled' Iran said to be scanning facility for surveillance equipment and checking workers' backgrounds to root out potential spies

After security cabinet meets on Iran, official says Tehran can 'smell' Washington's desire for an agreement 'at any cost'