Visa Journey Guides states that in order to prepare your fiance(e) for the visa interview, you are supposed to:
"Send all originals of the documentary proof that you submitted for the I-129F to your fiance(e) for their interview at the embassy. "
Some of the documentary proof I sent was a copy of my birth certificate and copies of every page of my passport. Do I really have to send my original birth certificate and my original passport to my fiancee for her interview? I sure hope not because I might need them.
