ankara/khartoum u.s. supreme court decision allow partial implementation president donald trump travel ban stir anger confusion part middle east would-be visitors worry travel plan futures blanket 90-day ban visitors six muslim-majority countries iran libya somalia sudan syria yemen 120-day ban refugees completely block low court trump issue march say need prevent terrorism attack monday supreme court rule ban could proceed though foreigners bona fide relationship american entity person specify mean rule leave middle east wonder would able enter unite state big disappointment say 52-year-old sudanese man capital khartoum believe would reject visa visit relatives unite state man decline identify say know outcome least sunday u.s. embassy open string national holiday travel america know prevent travel violate american law previous visit tell reuters u.s. consulate dubai normally queue door people wait process visa applications reuters reporter saw people middle east airlines yet receive directive unite state follow rule industry source tell reuters wednesday source say u.s. flight would continue operate normal guidance receive major airlines base region include dubai-based emirates airlines turkish airlines qatar airways iranian nationals attempt get visa u.s. embassy turkish capital ankara washington embassy iran also express concern reason behind law unclear say masoud 28-year-old engineer apply student visa accept doctoral program university dallas texas fair nearby another iranian national 27-year-old nima also say hop get visa pursue advance degree unite state hope get visa soon time tell reuters know anything may lead wish would extract iran country list revive u.s. travel ban sow confusion anger middle east