hi, i congratulate the immigartion team for conducting their job intelligently. I do not know how the parents remembered to bring their own visa while forgetting that of their sons(both of them) who are US citizens. I really doubt that they actually have one. I feel they tried to bully the immigartion team showing their green card status into accepting that they forgot to bring their visa. While for that of the French, considering he was alone, it can be justified that he forgot to bring it.
Further I see the letter describes how they cried and how their sons felt which does not add to their reasoning but is an attempt to draw sympathy. I know how the immigartion team functions and how they are trained to deal with such false claims.
