As UK pilots we already have 4 different types of ID. I carry all of these to work every day.
1.Passport.
2.Driving licence.
3.Pilots licence
4.Airport ID (additionally to Disclosure Scotland my airport now requires an IRIS scan to be recorded on the airport ID).
Why on earth do we need a 5th type of ID card? What is wrong with the 4 we already have?
