Final answer:
Self-driving cars may experience technical failures and face moral predicaments on the road, related to the challenges in developing AI and making ethical decisions in critical situations.
Step-by-step explanation:
According to the article, two possible problems with self-driving cars are that they may experience technical failures and they may encounter a moral predicament on the road. The complexity of developing artificial intelligence (AI) for self-driving cars brings about technical challenges that could lead to failures in systems that need to make split-second decisions. Moreover, self-driving cars could face scenarios where they must make decisions that involve moral and ethical considerations, such as during an unavoidable accident where harm to someone is imminent; this is often referred to as the trolley problem in philosophy.