Why is the English spoken by Maine lobstermen so different from that spoken by cowboys in Texas? Does Spanish pose a threat to English as the dominant language in America? And what on earth do yins, wickety wack, ayuh, catty whompus, and stomping it clean mean? In Do You Speak American? Robert MacNeil travels cross-country to answer these questions and examine the dynamic state of American English - a language rich with regional variety, strong global impact and cultural controversy.