washington u.s. state department wednesday stop issue certain kinds visa citizens cambodia eritrea guinea sierra leone nations take back citizens unite state want deport new policies lay state department cable review reuters tuesday describe department news brief late example u.s. president donald trump effort crack immigrants unite state illegally cable send secretary state rex tillerson consular officials around world say four countries deny unreasonably delay return citizens visa restrictions would lift country accept deportees secretary determine categories applicants subject visa restrictions categories differ slightly country country state department spokeswoman heather nauert say news brief tuesday visa sanction vary severity eritrea face harsh ones eritreans apply country u.s. business tourist visa reject accord one cable bit.ly/2jntwo8 guinea unite state long issue range tourist business student visa government officials immediate family members apply inside country another cable say bit.ly/2y5zmss surprise american authorities decision foreign minister moment work situation return normal guinea government spokesman damantang albert camara tell reuters must understand guinea never want prevent repatriation nationals conflict american law cambodia sanction tailor foreign ministry employees rank director general families apply inside country bar get visa personal travel third cable say bit.ly/2y5aehh sierra leone foreign ministry immigration officials deny tourist business visa u.s. embassy freetown accord fourth cable bit.ly/2wptf3v american citizens harm foreign governments refuse take back citizens thomas homan act director u.s. immigration customs enforcement say department homeland security statement case exceptions citizens four nations apply visa outside countries well exceptions humanitarian ground travel deem interest unite state new rule go effect wednesday affect visa already grant visa sanction allow u.s. immigration law punish countries refuse accept citizens back unite state practice unite state rarely take step twice past decade half accord department homeland security spokesman recent instance october 2016 obama administration stop issue visa gambian government officials families government take back u.s. deportees gambia three four countries include current visa restrictions cambodia guinea eritrea july list nations deem recalcitrant u.s. immigration authorities unclear immediately sierra leone include tuesday action even though recalcitrant list july ice release roughly 2,137 guineans 831 sierra leone nationals many serious criminal convictions dhs statement say addition around 700 eritreans 1,900 cambodians live unite state order remove dhs say dhs officials say case agency choice release convict criminals serve prison time could return home country refuse take back trump administration make priority pressure reluctant countries take back citizens july 12 nations deem recalcitrant china cuba vietnam laos iran cambodia burma morocco hong kong south sudan guinea eritrea accord 2016 congressional testimony michele bond former assistant secretary state consular affairs cuba recalcitrant country repatriation nationals although give number countries top immigration customs enforcement ice list recalcitrant countries china somalia india bond say time none countries face visa sanction u.s. issue visa nations deportation crackdown