Yeah exactly. Why can you jump on a train or bus with no security and no ID, but suddenly aeroplanes need to know the identity of everybody.
Smells very much like an agenda rather than a sensible policy. If everybody is screened what does it matter if people are not who they say they are? It's an illogical argument. Since when is it a crime to step onto an aeroplane?
The other problem for the government in this argument is that in the incident that started the review they actually had the identity of the passengers as it was an international flight and they still managed not to detect them.