Interview took place in Denver where over 300 people were invited. It is most important to have your passport, it's the first thing they ask for. Once you have shown your passport we were invited into an auditorium where they split you up into smaller groups. You are asked to step in front of the group choose a card with a question and reply to the question in front of the group and we had three interviewers. They are writing the entire time. You are given a break and a lunch. After lunch they post the names of people chosen to stay on. It seems a little insensitive to ask people to come back after lunch if they aren't selected. At that time I think we were split into smaller groups and had an activity. I think that shows if you are a team player. You then have a face to face interview and may have to wait a few hours for it. There are employees that stay with the group in the auditorium to answer questions, etc.