So who gets to decide what is REASONABLE? Can the SCOTUS look to the Religion of Islam to decide whether or not the 10 commandments can be displayed in public areas? How about looking to Saudia Arabia and most of the Middle East to decide women's rights?
One could go on and on and on, but to source foriegn law, customs and practices CHERRY PICKING STYLE is ridiculous and not adhering to the US CONSTITUTION which is the only SOURCE they should use.
I think 'reasonable' is a deliberately vague legal concept that essentially reflects (or should reflect, anyway) the overriding values in society, which can change over time. However, in reality, what we are talking about is what is reasonable for a judge and since the vast majority of judges are lawyers, 'reasonableness' is defined by law a school professors.