Iran added demands unrelated to discussions on its nuclear program during the latest talks and has made alarming progress on enriching uranium, the US envoy for talks on reinstating a nuclear deal said on Tuesday. US Special Envoy for IranRobert Malley said that there was a proposal on the table for a timeline by which Iran could come back into compliance with the nuclear deal and Washington could ease sanctions on Tehran. Indirect talks between Tehran and Washington aimed at breaking an impasse over how to salvage Iran’s 2015 nuclear pact ended in Doha Qatar last week without the hoped-for pr…