Who will answer the knocking at the door?

In a description of how refugee asylum seekers are being treated on arrival in Macedonia from Greece, we read that people are being crowded into train carriages at gun point, by soldiers exhibiting ‘contempt’ and ‘ferocity’.
Children are being roughly separated from their parents. The asylum seekers try not to complain as the soldiers ‘strut and smirk’.
The words come from the British writer, A.A.Gill, who is witnessing these scenes.
 
A.A.Gill goes on to write: ‘There is something about this moment, in this filthy field, with the clutching of children and luggage, that conjures a ghostly remembrance.’
 
I thought we were supposed to learn from the mistakes of the past! This is not something we are reading about that happened n 1941. This is happening right now, in late 2015.
Why?
How are we allowing it?
 
Is it because we do not allow ourselves to see these desperate people as human beings – like us? Is that our protection? Our excuse?
 
Mr Gill later states, ‘It is only possible to put up the no-vacancy sign if you don’t see who’s knocking at the door.’
 
Maybe that’s the truth.