In other transportation news, the ever-adventurous entrepreneur Elon Musk purchased a prop car built for the 1977 James Bond film The Spy Who Loved Me and plans to convert the prop into a real submarine car. Letters to the editor take note of the new ethical dilemmas that would stem from the availability of self-driving cars. Finally, the end to the last in a series of rules placed on air travel to and from Dallas Love Airport may mean increased number of flights by Southwest Airlines, which operates out of the airport, leading to increased competition and lower fares.