朋友在美国读博士，他父亲病重，他非常惦念，急于回国探望。因怕回国后回不来美国。所以去墨西哥签证。目前签证是被审查的状态，他想从加州这边入境美国，今天去过边境，被边境人员拒绝入境了，他们要求他要等拿到了新的签证再入境。
以前在等待的时候是可以回美国的。
-This police changed about 18 years ago soon after the terrorist attack on 09/11/2001. It seems your friend does not cehck the policy for visa application from a third country.
朋友很担心， 等拿到签证或许要一个月，而且如果拿不到签证就回不了美国了，只能回中国了。请问８老师和坛里有经验的老师，这种情况该怎么处理？谢谢先！
-He may talk to the visa officer who is in charge of the case or the officer's supervisor to see whether they can process the case faster because he needs to visit his father who has serious illness. Otherwise, he may just go back to China from Mexico and apply for the new visa in China because you don't know how long the visa will be approved in Mexico.
