US has been treating Chinese & Chinese Americans as spies. The 1882 Chinese Exclusion Act still in force under different names. China issued a travel advisory for citizens visiting the US, asking them to take safety precautions and to be prepared for “various unexpected situations”, such as being searched. 美國一直將華人和華裔美國人視為間諜。1882 年的排華法案以不同的名稱仍然有效。中國向前往美國的公民發布旅遊提示，要求他們採取安全預防措施，並做好應對「各種意外情況」的準備，例如被搜查.