Not at all; all one would have to do would argue that the Ten Commandments are universal. -- Of course if one wanted to they could counter that the Mosaic Law was not laid upon the early gentile Christians (Acts...16? -- basically they sent a letter w/ four commands).
If you're from the Manson Family, or the Hitler Family, a better Commandment would be to honor yourself, your own conscience, or your progeny. Once again, it's subjective.
I disagree; "do your folks proud" (which I read a being a credit to your family) isn't dependent on your folks, it's dependent on you... and how can you honor yourself and NOT be a credit to them? It is impossible, as far as I can tell.
Farah said that the legal system needed the 10 Commandments. I think it's reasonable to ask how that Commandment would be codified into law.
What do you think the Mosaic Law is? It is the codification thereof.
But US law is not Mosaic law. I’m not required by law to refrain from working on Sunday, and I’m not bound to follow any religious law. I don’t see what Farah’s point is about the legal system and the 10 Commandments, since unless you want to criminalize adultery (which has enforcement in some civil cases, like divorce), penalties against theft, murder, and false witness is already there.