Dear Celestine Omin - welcome to the United States of America!! We're thrilled to have you here, despite your unpleasant experience with Custom Border Patrol. Kudos to you for keeping your calm and aplomb, especially while answering technical questions for people who had no idea what the technical questions were, just to prove you are an engineer (as part of the "interview", I at least hope the CBP agents learned what a Binary Search Tree actually is). If you're ever in Seattle, I'd love to meet you and treat you to a cup of coffee. Best, -Nick …see more