Sorry if this has been addressed before but here goes. We are planning a trip to Kenya and Tanzania later this year. I know you can get a VISA before you travel but this requires you sending your passport to the embassy. That creates problems since we are currently living in Mexico so (US citizen). How important is it to have the VISA issued before the trip. Can you have the photos and blank passport pages and application and get admitted. A bit nervous about this since you end up at the mercy of immigration on arrival.