"Then came Hitler, the Spanish Civil War, etc. By the end of 1935 I had still failed to reach a firm decision. The Spanish war and other events in 1936-37 turned the scale and thereafter I knew where I stood. Every line of serious work that I have written..."
The ancient Christian tradition of sheltering those who require it. There is quite a difference between sheltering a Christian from the evil Roman Emperor Diocletian and someone who has broken legitimate laws.
To provide businesses seeking to hire foreign workers with a secure method of confirming their legal status. If a temporary worker is fired, convicted of a crime, or just disappears, the card will be cancelled, preventing someone else from hiring the worker.