The crossword solution for the term 'It is in Acapulco' is ESTA, which stands for Electronic System for Travel Authorization. This is an online system developed by the United States government to determine the eligibility of visitors to travel to the United States. It is also used to screen travelers from certain countries who are required to obtain a visa before entering the United States. ESTA is an important tool for travelers to ensure they are able to enter the United States without any issues.