What is the 5%; Head of Air Traffic speaks out

[Trapped]

The 5% make up the real cases of UFO's which... really boggle the mind. This five percent actually makes up about one serious UFO case a month, according to Nick Pope and the Head of Air Traffic.

http://www.huffingtonpost.co.uk/201...head-of-uk-air-traffic-control_n_1809535.html