When is an oath an oath, and when is a law the law? Right now, in Hong Kong, even such seemingly straightforward questions are subject to heated debate. There's been three weeks of chaos in Hong Kong's legislative council (LegCo), the territory's parliament, ever since five lawmakers had their oaths rejected last month - for adding or subtracting words, reading too slowly, or using derogatory language. Three of them have since been able to retake their oaths, and take their seats in parliament. Read more