Goa, April 12 -- Historic negotiations between the US and Iran in Islamabad ended in deadlock after 21 grueling hours, dashing hopes for a permanent end to their West Asia conflict. Delegations arrived Friday under a fragile two-week ceasefire, but mutual accusations flew as no deal materialized.

The US team, led by Vice President JD Vance, included special envoy Steve Witkoff, Jared Kushner, Deputy NSA Andrew Baker, and Michael Vance. Iran countered with parliament speaker Mohammed Bagher Ghalibaf, Foreign Minister Abbas Araghchi, defense council secretary Ali Akbar Ahmadian, central bank governor Abdolnaser Hemmati, and ex-IRGC commander Mohammad Bagher Zolghadr. Yet, clashing red lines proved insurmountable.

Vance labeled the outcome...