Hi guys, I'm new to the visa application process.Had an agent book the visa interview.I have the confirmation page and all supporting receipts and documents.Where i have an issue is if i am required to fill the DS 160 form prior to the already booked interview,sign and print out.This is confusing because i'm under the impression the agent filled a DS 160 form to be able to secure an appointment in the first place.do i have to fill the DS 160 form again before the interview? Also,how does this differ from what was filled by the agent to secure the appointment in the first place?Please help a novice out.detailed answer will be appreciated.