washington/new york trump administration temporarily delay process refugees 11 countries identify high-risk resume refugee admissions countries government officials say tuesday affect countries middle east africa accord document see reuters administration also place hold program allow family reunification refugees resettle unite state accord trump administration memo see reuters send congress tuesday resettle so-called following-to-join refugees resume accord memo screen enhancements implement u.s. officials say change aim protect u.s. national security refugee advocate say amount de facto ban refugees 11 countries unnecessary since refugees already heavily vet change come close 120-day ban refugees order president donald trump allow review vet process 120 days end tuesday trump issue executive order allow general resumption u.s. refugee program memo express concern admit refugees 11 countries say government conduct 90-day review determine additional safeguard necessary ensure ... security welfare unite state trump take office january goal sharply cut refugee admissions line promise make 2016 election campaign quickly issue temporary ban refugees travelers several muslim-majority countries challenge court opponents ban argue policies aim bar muslims unite state administration deny intent discriminate say travel ban security change mean protect unite state terrorist act supreme court tuesday dismiss last remain challenge early version trump travel ban 11 countries face hurdle whose refugees currently require undergo higher-level security screen know security advisory opinions saos end 2016 saos require adult male refugees nationals egypt iran iraq libya mali north korea somalia south sudan sudan syria yemen well palestinians live countries accord state department document see reuters three source familiar refugee process say list still current officials decline name 11 countries senior u.s. official tell reporters condition anonymity 90-day review period refugees 11 countries still admit unite state case-by-case basis deem national interest pose threat administration memo sign secretary state rex tillerson act department homeland security secretary elaine duke director national intelligence dan coat say government reallocate resources use process refugees sao countries locations process may resource intensive refugees international advocacy group say decision amount new near-total ban admission refugees 11 nationality group citizens 11 countries comprise 44 percent nearly 54,000 refugees admit unite state 2017 fiscal year accord state department data countries iraq syria somalia iran send far refugees unite state two countries north korea south sudan majority muslim though many refugees come countries religious minorities state nearly 2,600 iranian refugees resettle unite state last year instance majority christian accord state department data follow-to-join refugee program put hold allow refugees enter unite state apply close family members join 2,000 refugee family members come unite state 2015 accord dhs data separate state department memo see reuters issue week administration also lay additional screen refugees seek admission unite state include detail whereabouts go back decade twice long refugees also provide detail information family members new requirements could put additional burden refugees flee war famine ethnic cleanse whose live often upend whose family members may scatter across world refugee advocate say trump plan refugees 11 countries face additional u.s. barriers