Proving one's Jewishness
I understand why this would be an issue, but I started thinking about it. How does one prove it? I suppose for me it is actually pretty easy, since I think my parents still have their original Soviet passports, with the famous "Point #5"(Nationality) line on it. But what about here in the States where religion is not tracked in any official documents? Say your ancestors were not religious, but Jewish nonetheless. How do you PROVE it?