回复：先礼后冰 - when my Son was in trouble

I think your understanding of cheating is completely wrong. Your excuse is not excuse at all in US because in any school's honor code, cheating is both ways. If your son knows someone else is cheating but remains silence, he will be considered cheating as well. check your student handbook. Don't think getting answers for your own benefit is considered cheating. there are a lot of things, we cannot assume, or in this case, your son's straight A is less important than for him to learn the lesson of honor-showing off his own smart in the exam is not one of them.