Athens, Oct. 8 -- United States Secretary of State Marco Rubio has asserted that Iran will be permanently barred from obtaining nuclear weapons under President Donald Trump, simultaneously accusing Tehran of amassing an extensive stockpile of ballistic missiles and unmanned aerial systems designed to insulate its atomic programme from foreign military intervention.

Addressing a joint media briefing alongside Greek Foreign Minister Giorgos Gerapetritis in Athens, Secretary Rubio stressed that Washington's stance remains unyielding despite ongoing speculation regarding whether the United States might tolerate restricted uranium enrichment by Tehran within the framework of a prospective accord.

"Iran cannot have a nuclear weapon, simple, p...