Iran nuclear stand-off hardens after two decades of failed deals
Direct talks this weekend trod a familiar path of tortuous and frustrating diplomacy between Washington and Tehran
Related reading
US and Iran fail to reach deal after marathon talks
Vance said talks foundered over Tehran’s unwillingness to concede ground on nuclear weapons
US pushing Iran to agree 20-year moratorium on nuclear activity
Washington’s demand that Tehran halt uranium enrichment has been a barrier to progress on talks
Key areas of contention between Iran and the US
Washington has raised concerns about Tehran’s nuclear programme, ballistic missiles and allied militant groups
US-Israeli war against Iran escalates as talks prove fruitless
Top Iranian war leader accuses US of using diplomatic efforts as cover for ground operations
Mediators pursue Iran-US deal in back-channel diplomacy
Tehran and Washington have kept lines open despite collapse of talks in Pakistan
Get used to the long Iran war
Tehran has a strong incentive to keep the conflict going