Taken together, two seemingly unrelated news stories from Norway paint a grim picture of that city's future.
First, you need to know that Oslo is a sprawling, low-lying city, more of a small-scale Los Angeles than a small-scale New York. Out on its eastern flank is a large valley called Groruddalen which, a few years ago, was a sleepy mishmash of industry and suburban apartment blocks. It is now quickly becoming an urban center all its own. It is said that if current trends continue, Groruddalen will, within a couple of decades, dwarf downtown Oslo itself as a population center.
One not-so-little detail: the reason for Groruddalen's rapid growth is that it is a destination for new Muslim immigrants. Groruddalen is, in short, a Muslim enclave in the making.