I've been planning on heading back to the US to pick up my FBI background check, and then bring it back with me to Argentina. However, a friend just warned me that if I visit the US after the issuance date of the background check, then it would be void. The logic would be that if the FBI says I'm clean as of Feb. 15, and I then return to the US between Feb. 17 and 27, then Argentina would have no idea if I committed a crime during that 10 day window. Obviously this is a ridiculous hypothetical, but I don't want red tape to prevent me from getting the Visa pushed through. Does anyone have any insight on this situation? Thanks!