phnom penh unite state embassy cambodia say wednesday stop issue type visa cambodians cambodia take back citizens unite state want deport new policy come time u.s. president donald trump administration try crack immigrants unite state illegally u.s. embassy phnom penh say visa restrictions apply accordance u.s. secretary homeland security rule apply country refuse accept unreasonably delay return nationals secretary state must order consular officer suspend issue visa inform secretary homeland security country question accept individuals announcement embassy say embassy discontinue issue visa cambodian foreign ministry employees rank director general families limit exceptions say argument return cambodians deport unite state one many unite state cambodia accuse detain opposition leader kem sokha plot treason u.s. support early year cambodia stop accept deportation cambodian nationals convict crimes unite state say want renegotiate settlement agreement human right ground react visa announcement government spokesman phay siphan say show unite state recognise human right cambodia still cooperate u.s. say u.s. tell world respect human right reality t. drop bomb kill people unite state stop issue visa cambodia