You notice the keyword there is 'smooth'. Not open. 4.4 talks about things like ANPR which we have been told won't be installed It also talks about things like RFID which is the sort of technology used for Oystercards, contactless phones etc. That all relies on readers, just like with the gates on the Underground. it is possible to do that 'smoothly' as most passengers on the Underground will attest. What is not possible it to do it without infrastructure, which Teresa May has ruled out.