The ban on U.S. citizens spending money in Cuba will be more dutifully enforced under President Bush even though pressure is mounting in Congress to lift the restrictions entirely. Reportedly the Treasury Department will engage in surveillance of flights coming in from Cuba to other countries such Canada and Mexico in an effort to catch Americans going astray. Even so, it is hard to imagine the average traveler running afoul of the law. The cost is high, however: a maximum fine of $55,000.