for opposition. >> how long is an air traffic controller in training? >> it depends on if he's in the tower involvement, if it's busy, a place like chicago oral los angeles, he could be training anywhere from one year to two years. if it's in albany, new york, it could be six months. if he's in the center environment, higher altitude, cleveland, it could be two to three years. you don't just hire somebody and they walk in and take over. >> that's what i wanted to ask. how much latitude and independence do trainees have? is it an occasional check in? >> absolutely. trainees are watched at all time because the person responsible is the person who is plugged in with him at that time. in some cases they are monitored by a monitor position as well. >> how concerned should flyers