Adviser to Qatari PM: US-Iran prisoner swap is 'first step' to possible nuclear talks
Asked about this week's US-Iran prisoner swap deal, which followed months of Qatar-mediated talks, Al Ansari explained that the negotiations started "about two years ago", were "very difficult" and "involved a lot of meetings" between both sides. One of the main challenges was "building trust" between Tehran and Washington in order to reach a deal, he added.


