Much progress has been made in recent years but the veil of silence can still be difficult to penetrate.
Russian Foreign Minister Sergei Lavrov says Tehran and world powers agree on key aspects of preliminary accord.
Talks stuck over sanctions and Iran's ability to engage in nuclear research.
IBTimes UK takes a look at the five major challenges in securing a deal between Iran, Europe and the US.
Key sticky points between Iran and P5+1 powers remain unresolved as both sides enter crunch talks in Lausanne, Switzerland.
British foreign secretary Phillip Hammond will arrive in Switzerland this weekend to join the US, France and Iran.
PayPal has agreed to pay a £5m fine in relation to payments allegedly violating sanctions against Iran, Cuba and Sudan.
Two radical militias fighting alongside the Iraqi army have pulled out of the fight against Isis
Yeminis tell of widespread panic and confusion in Sana'a as Saudi, Jordanian jets pound the Houthi-held north.
Could overwhelming US firepower finally break the stalemate in Tikrit?
From tribal sect to conquering rebel army, Houthis are the new force in Yemen.
It is time to stop pretending that the West can pick and choose when to be involved in the war against Isis
Architect of the Iraq surge by US armed forces in 2006 warns that Shia militias risk driving Sunnis into arms of extremists.
In a video message to mark the Persian New Year Nowruz, US president asks Iranians to seize 'historic' opportunity.
With anti-Arab comments, opposition to Palestinian state and Obama spat, new prime minister Benjamin Netanyahu has made a prickly bed - now he will have to lie in it
Kurds may have beaten Isis in Kobani - but Kurdophobia remains rife.
America's bid to rescue its reputation for incoherent foreign policy is too little too late.
Adviser forced to backtrack after comments, branded 'irresponsible' by Iraqi foreign ministry.
UN Security Council members discuss UN resolution to terminate sanctions on Iran if a nuclear deal is reached.
Iraqi army and militias seize buildings in the centre of Tikrit as anti-ISIS forces push towards Mosul
Iraqi army forces and Iranian-backed militias claim that Isis are besieged in Tikrit.
Former Mossad spymaster Dagan spoke to IBTimes UK about the failure of Netanyahu's leadership.