BUENOS AIRES, Feb. 3 (UPI) -- Argentina's wine industry is undergoing a deep crisis, as long-established wineries face severe financial strain, domestic consumption drops sharply and exports fall to levels not seen in more than two decades. Iconic producers such as Norton and Bianchi have begun debt renegotiations or turned to legal mechanisms to avoid bankruptcy after accumulating large unpaid obligations. The financial deterioration points to structural problems that affect much of the wine