On the busy shopping street in Giessen, a German university town twinned with Winchester, migrant Atif Zahoor tucks into a chicken dish with his brother and cousin at the curry restaurant Chillie To Go. They have left good jobs back in Karachi, Pakistan, and now want to be Europeans. In late July the three slipped into Germany with their wives and children, using illegal documents. They live together in a five-bedroom house, rented for them by Chancellor Angela Merkel’s government, a 40-minute drive away from Giessen, which is home to the biggest migrants’ camp in the country. . . ....