Those people from China obtained their US green cards through political asylum and even later got their US citizenship beware, if they go back to China for any reasons could lose their US green card upon returning to the US, those already obtained their US Citizenship could got their US Citizenship revoked for lying on the US Citizenship application. if they must go back to China for any reasons should consult with an experience immigration attorney! US is now treating Chinese as yellow peril like how the 1882 Chinese Exclusion Act was passed, it seems to have legally sunset but in reality has not through new laws and regulations. It is the same bottle different wines! 那些來自中國的人透過政治庇護獲得了美國綠卡，甚至後來獲得了美國公民身份，請注意，如果他們因任何原因返回中國度假、商務活動或拜訪親友, 可能會在返回美國時失去美國綠卡，那些已經獲得美國公民身份的人可能會因在美國公民申請中撒謊而被撤銷美國公民身份。如果他們因任何原因必須返回中國，應諮詢經驗豐富的移民律師. 美國現在把華人當黃禍，就像1882年通過的《排華法案》一樣，看似法律上已經失效，但實際上並沒有, 祇是通過新的法律法規，同一個瓶子裡面裝不同的酒吧!