Hi, my wife and I applied for her immigrant visa in South Korea. However, around the same time as we were approved she was too far along in pregnancy to fly to the states so we waited there in korea until our son was born. By the time he was old enough to fly her visa had already expired. I was still on military orders at the time so i sent her home to the philippines and i followed her here sometime later. Now we are preparing to go to the states and we need to have her visa revalidated. How can we do this? How much time(roughly) is required? How much money (roughly) is required? Any other comments?