The US has agreed to the idea of taking part in talks involving Iran and world powers with a view to reviving a landmark nuclear deal. Earlier, Iran vowed to limit its nuclear programme in return for the lifting of economic sanctions under the 2015 deal.<br />''<br />''But former President Donald Trump withdrew the US from the deal in 2018, leading Iran to roll back commitments.<br />''Now the US has expressed intent to rejoin the deal under President Joe Biden.<br />''<br />''State department spokesman Ned Price said the US would accept an invitation from the European Union to meet Iran for talks.<br />''<br />''Senior EU diplomat Enrique Mora tweeted he was "ready to invite" all parties to talks, saying this was a "critical moment" for the deal.<br />''<br />''<br />''<span style="color: #222222;">Iran has not formally responded to the proposal.</span><br />