dubai iran say saturday would stop u.s. citizens enter country retaliation washington visa ban tehran six majority-muslim countries announce new u.s. president donald trump respect american people distinguish hostile policies u.s. government iran implement principle reciprocity offensive u.s. limitations iranian nationals lift foreign ministry statement say restrictions travel muslims america ... open affront muslim world iranian nation particular know great gift extremists say statement carry state media u.s. ban make virtually impossible relatives friends estimate one million iranian-americans visit unite state early saturday iranian president hassan rouhani say time build wall nations criticise step towards cancel world trade agreements without name trump trump wednesday order construction u.s.-mexican border wall major promise election campaign part package measure curb illegal immigration today time erect wall nations forget berlin wall fell years ago rouhani say speech carry live iranian state television annul world trade accord help economy serve development bloom world economy rouhani tell tourism conference tehran day world get close trade protectionist-minded trump formally withdraw unite state trans-pacific partnership trade deal monday fulfil campaign pledge end american involvement 2015 pact rouhani pragmatist elect 2013 thaw iran relations world power years confrontation engineer 2015 deal curb nuclear programme exchange relief sanction iran say ban u.s. visitors retaliation trump move